02-260-BFA_Revised BT99 OM_Cvr

8/11/03

11:53 AM

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The Best There Is

BT-99 TRAP SHOTGUN

O W N E R S M A N U A L
02-260-BFA_Revised BT99 OM

11:48 AM

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THANK YOU FOR CHOOSING A BROWNING B T- T R A P S H O T G U N.
We are pleased that you have chosen a Browning BT-99 Trap shotgun. In every way it is a firearm you will be proud to shoot for many years. Take time to follow this manual carefully, and you will gain real advantages that will bring out the best in your shooting ability. With a reasonable amount of care, your BT-99 should give you many years of dependable, enjoyable shooting. Please feel free to write us immediately if you have any observations regarding its performance and operation.
YOU ARE RESPONSIBLE FOR F I R E A R M S S A F E T Y.
As a gun owner, you accept a set of demanding responsibilities. How seriously you take these responsibilities can mean the difference between life and death. Failure to follow any of these instructions can cause extensive damage to your gun and/or possible serious injury or death to yourself and others.
THERE IS NO EXCUSE FOR CARELESS OR ABUSIVE HANDLING OF ANY FIREARM. AT ALL TIMES HANDLE ANY FIREARM WITH INTENSE RESPECT FOR ITS POWER AND POTENTIAL DANGER. READ AND UNDERSTAND ALL OF THE CAUTIONS AND PROPER HANDLING PROCEDURES OUTLINED IN THIS BOOKLET BEFORE USING YOUR NEW FIREARM.
1 ALWAYS KEEP THE MUZZLE OF ANY FIREARM POINTED IN A SAFE DIRECTION. Do this even though you are certain it is unloaded. Never point any firearm at anything you do not intend to shoot. Be extremely alert and aware of all persons and property within the range of your ammunition. 2 CAUTION: THE BT-99 SHOTGUN HAS NO MANUAL SAFETY. A trap shooter does not load his or her gun until moments before a bird is called for. For this reason, and because trapshooting demands intense concentration on shooting technique, no manual safety is provided on your BT-99. There is then no chance for a lost bird by reason of the safety being inadvertently left on safe.
LOAD YOUR BT-99 TRAP GUN ONLY WHEN SHOOTING IS IMMINENT. ONCE LOADED, THIS GUN IS READY TO FIRE AND SHOULD BE RESPECTED AS SUCH. NEVER TEST THE MECHANISM OF ANY FIREARM WHILE IT IS LOADED OR POINTED IN AN UNSAFE DIRECTION.
3 WHENEVER YOU HANDLE ANY FIREARM, OR HAND IT TO SOMEONE, MAKE SURE IT IS COMPLETELY UNLOADED. Always open the action immediately, and visually check the chamber. Make certain that the

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chamber does not inadvertently contain any ammunition. Always keep the chamber empty and the safety in the on safe position (remember, the BT-99 has no manual safety) unless shooting is imminent. 4 DO NOT TRANSPORT ANY FIREARM LOADED. Keep all firearms unloaded during transport, whether stored in a holster, gun case, scabbard or other container. 5 BEWARE OF BARREL OBSTRUCTIONS. Do this for the safety of both your gun and yourself. Mud, snow, and an infinite variety of other objects may inadvertently lodge in a barrel bore. It takes only one small obstruction to cause dangerously increased pressures that can ruin (swell or rupture) the finest barrels.
BEFORE CHECKING FOR A BARREL OBSTRUCTION, BE CERTAIN YOUR FIREARM IS FULLY UNLOADED. Make sure no live round is in the chamber by breaking open the action. Look through the barrel to be sure it is clear of any obstruction. If an obstruction is seen, no matter how small it may be, clean the bore with a cleaning rod and patch as described later in this manual. Before the first firing, clean the bore with a cleaning rod and patch, and wipe away any anti-rust compounds in the action/chamber areas.
6 ALWAYS COMPLETELY UNLOAD ALL FIREARMS WHEN NOT IN USE. As a safety precaution, it is preferable to disassemble your gun for storage. Store your gun and ammunition separately well beyond the reach of children. Your responsibility does not end when your firearm is unattended. Store your firearm and ammunition separately and well beyond the reach of children. Take all safeguards to ensure that any firearm does not become available to untrained, inexperienced or unwelcome hands. 7 USE THE PROPER AMMUNITION. The barrel and action of all Browning firearms have been made with substantial safety margins over the pressures developed by established American commercial loads. Nevertheless, Browning assumes no liability for incidents which occur through the use of cartridges of nonstandard dimensions

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15 DROPPING A LOADED GUN CAN CAUSE AN ACCIDENTAL DISCHARGE. This can occur even with a firearms safety in the on safe position (remember, the BT-99 has no manual safety). Be extremely careful while hunting or during any shooting activity, to avoid dropping any firearm. 16 IF ANY FIREARM FAILS TO FIRE, KEEP THE MUZZLE POINTED IN A SAFE DIRECTION. Hold this position for a minimum of 30 seconds. Carefully open the action and remove the shell or cartridge. If the primer is indented, the cartridge should be disposed of in a way that cannot cause harm. If the primer is not indented, your firearm should be examined by a qualified gunsmith and the cause of the malfunction should be corrected before further use. 17 BE DEFENSIVE AND ON GUARD AGAINST UNSAFE GUN HANDLING AROUND YOU AND OTHERS. Dont be timid when it comes to gun safety. If you observe other shooters violating any of these safety precautions, politely suggest safer handling practices. 18 BE CERTAIN ANY FIREARM IS UNLOADED BEFORE CLEANING. Because so many gun accidents occur when a firearm is being cleaned, special and extreme care should be taken to be sure your gun is unloaded before disassembly, cleaning and reassembly. Keep ammunition away from the cleaning location. Never test the mechanical function of any firearm with live ammunition. 19 SUPERVISE AND TEACH FIREARMS SAFETY TO ALL MEMBERS OF YOUR FAMILY ESPECIALLY TO CHILDREN AND NONSHOOTERS. Closely supervise newcomers to the shooting sports. Encourage enrollment in hunting/shooting safety courses. 20 NEVER DRINK ALCOHOLIC BEVERAGES OR TAKE ANY TYPE OF DRUGS BEFORE OR DURING SHOOTING. Your vision and judgment could be dangerously impaired, making your gun handling unsafe to you and to others. 21 PERFORM PERIODIC MAINTENANCE AVOID UNAUTHORIZED SERVICING. Your new firearm is a mechanical device which will not last forever, and as such, is subject to wear and requires periodic inspection, adjustment, and service. Browning firearms should be

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serviced by a Browning Recommended Service Center or by Brownings service facility in Arnold, Missouri. Browning cannot assume any responsibility for injuries suffered or caused by unauthorized servicing, alterations or modifications of Browning firearms. 22 BROWNING RESERVES THE RIGHT TO REFUSE SERVICE ON FIREARMS THAT HAVE BEEN ALTERED, ADDED TO OR SUBSTANTIALLY CHANGED. Removal of metal from barrel(s), or modification of the firing mechanism and/or operating parts may lead to Brownings refusal of service on such firearms. Browning will charge the owner for parts and labor to return the firearm to original Browning specifications. 23 READ AND HEED ALL WARNINGS in this instruction book, on ammunition boxes and with all accessories that you install on your firearm. It is your responsibility to secure the most up-to-date information on the safe handling procedures of your Browning gun. Browning assumes no liability for incidents which occur when unsafe or improper gun accessories or ammunition combinations are used.

DO NOT, UNDER ANY CIRCUMSTANCES, ALTER THE TRIGGER, SAFETY (THE BT-99 SHOTGUN HAS NO MANUAL SAFETY) OR OTHER PARTS OF THE FIRING MECHANISM OF THIS OR ANY OTHER FIREARM. FAILURE TO OBEY THIS WARNING MAY RESULT IN INJURY OR DEATH TO YOURSELF OR OTHERS.

BE CAREFUL!

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N O M E N C L AT U R E

In conventional gun terminology, the position and movement of gun parts are described as they occur with the gun horizontal and in normal firing position; i.e., the muzzle is forward or front; butt stock is rearward or rear; trigger is downward or underneath; the rib is upward or on top. For general parts nomenclature refer to Figure 1. For specific parts names related to disassembly see Figure 2.

FIGURE 1

Adjustable Comb (optional) Top Lever Rib Barrel Muzzle
Stock GraCoil System (optional) Trigger

Receiver

Forearm

Barrel Ports (optional)

FIGURE 2
Top Lever Barrel Lug Hinge Pin
Forearm Bracket Takedown Lever Latch

SERIAL NUMBER

The serial number of your BT-99 can be found on the top tang under the top lever. Record this number for future reference.

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AMMUNITION
All BT-99 Models are designed to shoot and function with 234" 12 gauge trap loads only. Browning can assume no responsibility for incidents which occur through the use of cartridges of nonstandard dimension or those developing pressures in excess of industry standards established by the Sporting Arms and Ammunition Manufacturers Institute (SAAMI).
CAUTION: DO NOT USE 3" OR 3 12" SHOTGUN SHELLS IN ANY SHOTGUN OR BARREL WITH A 2 34" CHAMBER. THE SIZE OF THE CHAMBER IS INSCRIBED ALONG WITH GAUGE AND CHOKE DESIGNATIONS, ON THE SIDE OF THE BARREL.

INITIAL CLEANING

Various exposed metal parts of your new BT-99 have been coated at the factory with a rust preventative compound. Before assembling your BT-99, clean the anti-rust compound from the inside of the barrel and chamber, and generally wipe clean the metal surfaces at the rear of the forearm, on the barrel lug and the interior areas of the receiver, as well as any other parts coated with this compound. Browning Oil is ideal for wiping and cleaning these parts and for giving your gun its first lubrication. Clean the barrel using a cleaning rod and patch as explained under Cleaning Suggestions. Read this entire manual before performing the first cleaning, to learn necessary information on breaking open the action, etc.

1 With the action closed, anchor the buttstock against your upper leg and pull the takedown lever latch outward. 2 At the same time, grasp the forearm with the other fingers of the left hand and with the help of the right hand pivot the forearm away from the barrel (Figure 9). Set the forearm aside. 3 Break open the action in the usual manner. 4 Carefully disengage the barrel lug from the hinge pin and lift the barrel upward out of the action. 5 Reattach the forearm to the barrels as explained previously, except with the barrels separated from the receiver. This is an ideal way to store your shotgun in two separate pieces.

FIGURE 9

NO MANUAL SAFETY
Pivot the forearm away from the barrel
CAUTION: REMEMBER, THE BT-99 SHOTGUN HAS NO MANUAL SAFETY. THE BT-99 IS DESIGNED SOLELY FOR TRAP SHOOTING.
A trap shooter does not load his or her gun until moments before a bird is called for. For this reason, and because trapshooting demands intense concentration on shooting technique, no manual safety is provided. There is then no chance for a lost bird by reason of the safety being inadvertently left on safe.
LOAD YOUR BT-99 TRAP GUN ONLY WHEN SHOOTING IS IMMINENT. ONCE LOADED, THIS GUN IS READY TO FIRE AND SHOULD BE RESPECTED AS SUCH.

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Always keep the muzzle of your shotgun pointed down range at all times when on the shooting line. When leaving or moving along the line always open the action. Never load the chamber until you are ready to shoot. Never have the action of your BT-99 closed except when you are on the line, ready to shoot, when your gun is cased, or when it is set in a gun rack at the range. When you retrieve your gun from its case or from a gun rack, always immediately open the action and check to assure that no shell is in the chamber.
ALWAYS KEEP THE MUZZLE OF YOUR BT-99 POINTED IN A SAFE DIRECTION. FAILURE TO FOLLOW THE ABOVE INSTRUCTIONS COULD RESULT IN INJURY OR DEATH TO YOURSELF OR OTHERS.
G E N E R A L O P E R AT I N G P R O C E D U R E S
Highly skilled techniques of hand-fitting and polishing have been used to accomplish the hairline fitting of metal parts on this gun. These painstaking operations are necessary to prevent looseness, even after long use. You may consider your new gun to be slightly stiff. This close fitting, however, assures you of long lasting dependability. OPERATION OF THE TOP LEVER The top lever operates the locking bolt, which is very closely handfitted to its barrel lugs. Provision is made for the gradual wear of locking surfaces by allowing a slight excess of metal. This exacting metal allowance keeps the breech of the gun tight for many years. Upon closing your gun, let the top lever snap into position do not retard its action with your thumb. If closed in this manner, the top lever spring will return the top lever mechanism to the locked position. It is not necessary that the top lever return to a completely central position; in fact, it usually will not do so in a new gun. Many experienced shooters cultivate the habit of lightly pushing the top lever to the left after the gun is closed. It becomes automatic and is a quick method of assuring yourself that foreign matter has not interfered with the complete closure of the breech. The breech is so tightly hand-fitted that foreign matter, sand, etc. may prohibit complete closing.

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IF THE BREECH WILL NOT CLOSE COMPLETELY, UNDER NO CIRCUMSTANCES SHOULD YOU ATTEMPT TO FIRE THE SHOTGUN.
Break the action of the gun and unload it. Carefully examine the breech surfaces, and remove the foreign matter. Remember to always keep the polished breech surfaces clean and lightly oiled. LOADING
CAUTION: REMEMBER, THE BT-99 SHOTGUN HAS NO MANUAL SAFETY. LOAD YOUR BT-99 TRAP GUN ONLY WHEN SHOOTING IS IMMINENT. ONCE LOADED, THIS GUN IS READY TO FIRE AND SHOULD BE RESPECTED AS SUCH. AT ALL TIMES DURING THE LOADING AND UNLOADING PROCEDURES BE SURE YOUR MUZZLE IS POINTING DOWN RANGE, IN A SAFE DIRECTION.
1 Break the action as explained above. 2 Insert a shell fully into the chamber. 3 Close the action by lifting up on the forearm. The lever will snap back to center when properly closed. Remember, keep your finger away from the trigger until you are ready to shoot. UNLOADING 1 Open the action by pushing the top lever to the right, as explained previously. 2 Pull down on the forearm. The BT-99 has an automatic extractor extension. This means that a shell fired or unfired will lift from the chamber of the shotgun when the action is broken open and be conveniently lifted slightly out of the chamber for easy removal with your fingers. Remember, never have the action of your BT-99 closed except when you are on the line ready to shoot, when your gun is cased, or when it is set in a gun rack at the range. Also, never load the chamber until you are ready to shoot. It is a courtesy to other shooters, and a wise safety practice, to keep your action open and unloaded at all other times.

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FIRING With the chamber loaded, and the action closed, the BT-99 is fired by simply pulling the trigger. Never pull the trigger unless the muzzle is pointed down range, at the clay target. Make sure people other shooters, spectators, trap operators are not down range. If there is any doubt about down range safety, open the action immediately and remove the shell until you are certain all conditions are safe.

OPTIONAL BARREL PORTING

Your BT-99 may or may not have optional barrel porting. The drilled holes in the top of the barrel are desired by some shooters for their tendency to reduce barrel jump and give a feeling of lower recoil against the face. They require only an occasional cleaning as described under Cleaning Suggestions later in this manual.
B T- M O D E L S W I T H A D J U S TA B L E C O M B
Some BT-99 shotguns feature an adjustable comb on the stock (Figure 10). The adjustable comb can be adjusted the achieve a perfect, personalized fit for the shooter. When properly adjusted, this feature will allow for a customized sight picture for faster target acquisition and better accuracy.

FIGURE 13

FIGURE 14

FIGURE 15

With Allen screw loose, adjust comb to desired position

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Unless adjusting drop at comb, reinstall the butt plate by sliding it back into the stock and tighten the set screws using the 332" Allen wrench. Do not over tighten.
A D J U S T I N G D R O P AT C O M B
Adjusting the drop at the comb allows you to align your eye perfectly with the plane of the rib. A correct sight picture for most shooters should have you looking down the rib with the bottom of the front bead resting on the top of the middle bead. This forms a figure eight or stacked configuration. Some of the rib will be showing as you sight down, but no rib will show between the beads. The important thing is to line up correctly each time you shoot. The Adjustable Comb has an height adjustment range of 11 increments, at 116" per increment, resulting in approximately 58" of height adjustment. CAUTION: DO NOT GO BEYOND THE RANGE OF ADJUSTMENT INCREMENTS. SHOULD THIS OCCUR, THE COMB WILL NOT BE PROPERLY SECURED AND COULD RESULT IN DAMAGE TO THE FIREARM. The drop measurement is determined by measuring the distance between the plane formed by the top of the rib and the top of the cheekpiece itself. The higher the cheekpiece, the lower the drop. To set drop perform the following:
1 STANDARD MODEL: Loosen the comb by inserting a 764" Allen wrench through the hole found on the upper left of the recoil pad and into the Allen screw located within the recoil pad (Figure 11). Turn wrench counterclockwise three full turns to loosen Allen screw. This will sufficiently loosen the Adjustable Comb, allowing adjustments to be easily made. The cheekpiece comes set from the factory with comb in the lowest position. GRACOIL MODEL: Remove the butt plate by inserting a 332" Allen wrench into the single hole on the right side of the butt plate and turn the set screw counterclockwise two turns to loosen the screw (Figure 12). Removing the butt plate gives access to the the hole found on the upper left of the stock plate. (Figure 13). Loosen the

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comb by inserting a 764" Allen wrench through the hole found on the upper left of the stock plate and into the Allen screw located within the stock plate (Figure 14). Turn wrench counterclockwise three full turns to loosen Allen screw. This will sufficiently loosen the Adjustable Comb, allowing adjustments to be easily made. The cheekpiece comes set from the factory with comb in the lowest position. 2 With Allen screw loose, carefully adjust comb to desired position (Figure 16) by sliding each post equally in the desired direction. DROP AT COMB ADJUSTMENTS ARE A MATTER OF TRIAL AND ERROR. Adjust in small increments until the desired sight picture on the rib is reached. Each increment represents 116". 3 To decrease drop at comb, carefully slide each post up equally. To increase drop at comb, carefully slide each post down equally. Sliding each post equally will reduce the chance of the comb binding. 4 STANDARD MODEL: Once your desired drop at comb is obtained, tighten the Allen screw in the recoil pad. The screw needs to be firmly tightened, but be careful not to over tighten. Drop is now set on your shotgun. GRACOIL MODEL: Once your desired drop at comb is obtained, tighten the Allen screw in the stock plate. The screw needs to be firmly tightened, but be careful not to over tighten. Drop is now set on your shotgun.

FIGURE 16

Reinstall the butt plate by sliding it back into the stock and tighten the set screws using the 332" Allen wrench. Do not over tighten.

THE GRACOIL SYSTEM

Some BT-99 shotguns feature the GraCoil system (Figure 17). This highly adjustable unit allows you to tailor the gun to suit your specific fit requirements. The GraCoil system features an adjustable compression unit to reduce recoil, adjustable length of pull and an adjustable butt plate. 19

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The guide pins on the butt plate run on Teflon bushings (Figure 18). This ensures long life and smooth action of the GraCoil recoil reduction system. An occasional cleaning and light lubrication of the guide pins will prevent premature wear. A light oil is suitable for lubrication.
ADJUSTING THE GRACOIL RECOIL REDUCTION SYSTEM
When making adjustments to the GraCoil systems compression unit, be aware that the unit should be adjusted to the shooter, not to the shell size or loads being fired. When adjusted properly, the recoil from the shotgun will activate the GraCoil system, effectively reducing the recoil felt by the shooter. The GraCoil recoil reduction system features adjustable compression range from 14-70 lbs. with a 516" maximum stroke. To adjust the GraCoil system, perform the following:

FIGURE 17

GraCoil System

FIGURE 18

1 Loosen the butt plate by inserting a 332" Allen wrench into the single hole on the Lubricate here right side of the butt plate and turn the set screw counterclockwise two turns to loosen the screw (Figure 19). 2 Remove the butt plate by pulling it straight out. This exposes the center shaft where adjustments are made (Figure 20). 3 Insert the 332" Allen wrench into the hole in the center shaft and turn the wrench clockwise (light) to decrease the compression to the lightest setting. Do not force the compression adjustment screw. 4 Reinstall the recoil pad by tightening the two screws with the 332" Allen wrench.

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5 To personalize the GraCoil recoil reduction system, bring the gun to your shoulder as if you are ready to call for a target. If the unit compresses when you perform this action, the compression of the unit is set too light. Remove the pad again according to Step 2 and increase the compression ONE TURN by inserting the 332" Allen wrench into the hole in the center shaft and turning the wrench counterclockwise (heavy) to increase compression. COMPRESSION ADJUSTMENTS ARE A MATTER OF TRIAL AND ERROR. Adjust ONE TURN at a time until the unit ceases to compress when brought to the shoulder. If the compression is set too light, there will be excess motion from the gun when shouldering, thus affecting accuracy. If the compression is set too heavy, more recoil will be felt.

1 Remove the recoil pad by inserting a 332" Allen wrench into the two openings in the recoil pad and removing the two screws in the rear of the recoil pad (Figure 24). To prevent damage to the recoil pad, place a small amount of petroleum jelly on the Allen wrench. This will prevent the Allen wrench from grabbing and possibly tearing the recoil pad. 2 With a 332" Allen wrench, loosen the two set screws used to keep the cam locks in place (Figure 25). 3 Both screws have a series of six holes that can be used for a wide range of pad plate adjustment. PAD PLATE ADJUSTMENT IS A MATTER OF TRIAL AND ERROR. Adjust in small increments until the desired pad plate position has been reached. 4 Once the desired pad plate location is reached, tighten the two set screws that keep the cam locks in place with the 332" Allen wrench. Do not over tighten the set screws.

Adjustable Pad Plate

FIGURE 24
Insert Allen wrench here.

FIGURE 25 Cam lock

Set screw

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5 Reinstall the recoil pad by tightening the two screws with the 332" Allen wrench.
INVECTOR-PLUS CHOKE TUBE SYSTEM
New model BT-99 shotguns feature a barrel fitted with the InvectorPlus choke tube system. Older BT-99s may also have the Standard Invector tube system or a conventionally choked barrel. The Invector-Plus system is a screw in choke tube system with interchangeable tubes. You can confirm this by reading the inscription on the right side of the barrel.
FIGURE 26 FIGURE 27 A B Cylinder Full Imp. Modified

Modified

Imp. Cylinder
A Invector Plus choke tube B Standard Invector choke tube

MARKING ON BARREL

TYPE OF CHOKE
Invector Invector-Plus No Choke Marking on Barrel
Standard Invector Choke Tube System Invector-Plus Back-Bored Choke Tube System Conventionally Choked Barrel

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Available 12 Gauge Invector-Plus tubes:
RIM NOTCHES C H O K E D E S I G N AT I O N WITH LEAD C H O K E D E S I G N AT I O N WITH STEEL
X on side of tube I II III IIII IIIII No notches

2 Open the action using the top lever as explained previously. 3 Use the Invector wrench to loosen the tube, turning it counterclockwise. Finger twist the tube the rest of the way out of the barrel. TUBE INSTALLATION 1 Fully unload your BT-99.
ALWAYS UNLOAD YOUR BT-99 FULLY. INSPECT THE CHAMBER TO MAKE SURE IT DOES NOT CONTAIN ANY SHELLS.
2 Open the action. 3 Before installing a tube, check the internal choke tube threads in the muzzle, as well as the threads on the Invector choke tube to be sure they are clean. Lightly oil the threads with an oil like Browning Oil. 4 Using your fingers, screw the appropriate tube into the muzzle end of the barrel, tapered end first, notched end outward. When it becomes finger-tight, use the appropriate Invector choke tube wrench to firmly seat the tube.

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THE INVECTOR CHOKE TUBE SHOULD BE PERIODICALLY CHECKED TO ASSURE THAT IT IS TIGHT AND FIRMLY SEATED. BEFORE CHECKING, FOLLOW THE SAFETY GUIDELINES OUTLINED PREVIOUSLY.
Replacement and additional tubes and wrenches are available from your Browning dealer, or by writing: Browning Consumer Department One Browning Place Morgan, Utah 84050-9326 (801) 876-2711 Canadian customers please call or write: Browning Canada Sports Ltd./Ltee 5617 Chemin St-Francois St-Laurent, Quebec H4S 1W6 (514) 333-7261 INVECTOR TUBE IDENTIFICATION To identify individual Invector tubes, refer to the abbreviated indications on the side of the tube, or use the identification notches located on the top rim of each tube. (Figures 26 and 27). SELECTING THE CORRECT INVECTOR CHOKE TUBE Although your BT-99 is designed solely for target use with lead shot loads, the Invector choke system is fully compatible with factory steel shot loads as well. For your information only, on the chart below we have included steel shot information in addition to the lead shot choke/pattern specifications you will need. Both lead and steel designations have proven necessary for hunters using other Browning guns with Standard Invector and Invector-Plus tubes because in any given tube, steel shot gives a different pattern than lead shot. In fact, even larger steel shot diameters result in different patterns than smaller steel shot sizes. Each designation is inscribed on each choke tube. Remember, you will only need to refer to the lead shot

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designations when selecting a proper tube for your BT-99, as your new shotgun is unsuitable for any hunting use.
C O N V E N T I O N A L LY C H O K E D B A R R E L S
If you have a BT-99 with a conventionally choked barrel it is also easy to determine choke constriction. Constriction of conventionally choked barrels is shown with a neat, clearly defined mark found at the chamber end of the barrel, on the left side surface of the polished barrel lug. The coding is as follows:
MARKING ON LEFT BARREL LUG OF A C O N V E N T I O N A L LY C H O K E D B A R R E L AMOUNT OF CHOKE

Full Choke Improved Modified Modified
To determine the choke of an Invector tube see the section titled Invector-Plus Choke Tube System above.

CLEANING SUGGESTIONS

The BT-99 is a target gun, and as such will function better and more reliably over a longer period of time if it is properly maintained and kept clean.
BEFORE PERFORMING ANY CLEANING PROCEDURES, ALWAYS MAKE CERTAIN THERE IS NO SHELL IN THE CHAMBER.
You should clean your BT-99 after every day of shooting, and more often if it becomes excessively dirty. A minimum cleaning includes wiping down the action and oiling key parts. Most regular maintenance will also include cleaning the barrel. If you encounter a function problem (tight action when closing, etc.), be sure to give your gun a thorough cleaning to see if it solves the problem before seeking the services of a Browning Recommended Service Center or the Browning Service Facility in Arnold, Missouri, or a competent gunsmith. A light cleaning means oiling and wiping down. It can be accomplished with the barrel still attached. A full cleaning requires that you remove the barrel and forearm. To clean your firearm follow the 28 general outline below:

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CLEANING PROCEDURES
BE CERTAIN YOUR GUNS CHAMBER IS UNLOADED. ALWAYS WEAR PROTECTIVE SAFETY GLASSES DURING ALL ASSEMBLY, DISASSEMBLY AND CLEANING PROCEDURES. KEEP AMMUNITION AWAY FROM THE CLEANING AREA. DO NOT TEST THE FUNCTION OF YOUR FIREARM WITH LIVE AMMUNITION.
1 Remove the barrel and forearm from the receiver as explained previously. 2 Using a shotgun cleaning rod, with tip and patch large enough for a snug fit in the bore, insert the rod and lightly oiled patch in the breech end of the barrel and run back and forth several times. 3 Inspect the bore from both ends for leading and plastic residue. Plastic residue is often left in the bore from the shot cups in modern shotshells. Leading and plastic residue will appear as longitudinal streaks and are usually more predominant near the muzzle and just forward of the chamber. A normal amount of either is common and is not serious. 4 If leading or plastic residue seems excessive you can remove it by brushing the bore with a brass brush. Soak the brush or spray the bore with powder solvent first. Scrub until clean. To prevent bristles from breaking off, push the brush fully through each time before pulling it back through. 5 If your shotgun has barrel ports, carefully clean them with a rag soaked in powder solvent. You may need to scrape residues from the holes with a pipe cleaner or a small nylon brush. Be careful not to mar the blueing on the barrels outer surface, or scratch the inside of the barrel. 6 After all leading and residues have been removed run a clean dry patch through the bore. Follow this with a final, lightly oiled patch. 7 Wipe all metal surfaces of the receiver, forearm and barrel with clean rag. Then lightly oil your gun at the points described in step 1 under Assembly Procedures. Regular, light oiling is extremely important to the durability and reliable operation of your shotgun.

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Remember, the broad, polished, finely fitted surfaces of the receiver an forearm mechanisms (the ejector slide, the hinge pin, and on each side of the barrel receiver walls), must always have a thin film of oil. Use a quality oil like Browning Oil for this purpose. 8 Inspect the barrel and chamber TO BE CERTAIN NO PATCHES HAVE INADVERTENTLY BEEN LEFT IN THEM. Remove any that remain. 9 Wipe all wood surfaces with Browning Oil or a quality furniture polish, but not both. OTHER CLEANING SUGGESTIONS Never pour large quantities of oil into the receiver or other parts. It can drain down to the wood and soften it and cause permanent damage and loosening of the stock. It is very important that the chamber of your shotgun be cleaned thoroughly and promptly after shooting plastic shotshells. DO NOT LEAVE A DISCHARGED (EMPTY) SHELL IN THE CHAMBER FOR ANY LENGTH OF TIME. The chemical composition of many plastic shells contains moisture which can sweat out of the shell and onto the chamber surface, and possibly cause corrosion and rust.
NEVER ATTEMPT TO TAKE YOUR BT-99 APART FURTHER THAN EXPLAINED IN THIS MANUAL.
This is a specialized, finely fitted mechanism. You may permanently mar it by attempting to disassemble the inner mechanism assemblies. If further disassembly for service or cleaning is required, take your gun to a Browning Recommended Service Center, the Browning Service Facility in Arnold, Missouri, or a competent gunsmith as explained under Service or Repair.

SERVICE OR REPAIR

If your firearm should require service or repairs, we suggest you first contact a local recommended Browning Firearms Service Center. Contact your Browning sporting goods dealer or call our Service Department for the address of the Service Center nearest you. Otherwise, you may send your firearm directly to our own Service Department. For technical questions about your firearm or service, contact: Browning Service Department One Browning Place Arnold, Missouri 63010-9406 Phone 1-800-322-4626 Canadian customers call or write: Browning Canada Sports Ltd./Ltee, 5617 Chemin St-Franois St-Laurent, Quebec H4S 1W6 Phone: (514) 333-7261 When returning your firearm for servicing, you must do the following: 1. Be sure your firearm is completely unloaded. 2. Package your firearm securely in a cardboard container. 3. Enclose a letter with your firearm that clearly describes the trouble experienced and the repairs desired. 4. If convenient, send a copy of the letter to us separately. 5. Never return ammunition with your firearm. It is against postal and most commerce regulations. If you have any questions about this manual or about any other Browning products, call or write our Consumer Information Department: Browning Consumer Information One Browning Place Morgan Utah 84050 Phone: (801) 876-2711

BROWNING.COM BROWNING US: Morgan, Utah 84050-9326 BROWNING CANADA: Browning Canada Sports Ltd/Ltee,St-Laurent, Quebec, H4S 1W6 BROWNING INTL: Parc Industriel des Hauts-Sarts, B-4040 Herstal, Belgium

AO0212/ 02260

BR22995 6/6/01 2:04 PM Page 1

BACK BY POPULAR DEMAND

Re-introducing the classic BT-99 trap gun.

BT-gauge trap shotgun

The Browning BT-99 trap gun was first introduced in 1969. Its very competitive price and performance immediately made it a mainstay at ranges worldwide. Over the years, it evolved rib height, triggers and other optional adjustments were offered to make this king of the trap shooting world even better.
Yet the gun never lost its integrity or the incredible reliability of a Browning; always offering far more value than cost. The BT-99 was a gun that performed. That performance earned it a loyal following, which is evidenced by the fact that youll be hard-pressed to find a used BT for sale or trade. Countless requests from loyal fans have returned the timeless BT-99 trap gun to our
line. Time to begin a new season with the most reputable trap gun available. Enjoy! After all, the customer is always right.
The BT-99 features a back-bored barrel and utilizes the Invector Plus choke tube system (full choke included) to provide more consistent patterns and reduce felt recoil. The beavertail forearm and high post 11/32" rib assists in hand-eye coordination. It is available with either a conventional stock or optional adjustable comb.

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