8/11/03 11:53 AM The Best There Is ™ 02-260-BFA_Revised BT99 OM_Cvr BT-99 TRAP SHOTGUN O W N E R ’ S M A N U A L Page 2
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 1 THANK YOU FOR CHOOSING A BROWNING B T- 9 9 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 2 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 3 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 4 which develop pressures in excess of commercially available ammunition which has been loaded in accordance with standards established by the Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI). BE ALERT TO THE SIGNS OF AMMUNITION MALFUNCTION. IF YOU DETECT AN OFF SOUND OR LIGHT RECOIL WHEN A SHELL IS FIRED, DO NOT LOAD ANOTHER SHELL INTO THE CHAMBER. Open the action and remove the shell from the chamber.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 5 fired, the result will be a so-called “12-20 burst” which can cause extensive damage to your gun and possible serious injury to you and others. 9 USE SHELLS OF THE CORRECT LENGTH. Do not use 31⁄2" shotgun shells in a shotgun or barrel with a 23⁄4" chamber or 3" chamber. Do not use 3" shells in a shotgun chambered for a 23⁄4" shells.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 6 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 7 serviced by a Browning Recommended Service Center or by Browning’s 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 8 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 9 AMMUNITION All BT-99 Models are designed to shoot and function with 23⁄4" 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 Manufacturer’s Institute (SAAMI).
02-260-BFA_Revised BT99 OM FIGURE 3-A 8/11/03 11:48 AM Page 10 FIGURE 3-B Hinge Pin Bearing Surface Forearm Bracket Barrel Flats Extractor Extension Barrel Lug FIGURE 3-C Locking Bolt Cocking Lever Hinge Pin 3-A) The forearm bracket. 3-B) Barrel lug, hinge pin bearing surface, extractor extension and barrel flats. 3-C) Hinge pin, cocking lever and locking bolt.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 11 Engage the rear portion of the forearm (forearm bracket) with the action (Figure 7). 6 Pivot the forearm up to the barrel tightly. This will cause the takedown lever latch to engage onto the barrel. It may be necessary to depress the takedown lever latch. It should be flush with the wood on the underside of the forearm.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 12 D I S A S S E M B LY P R O C E D U R E S Disassembling your BT-99 into two parts — the action/buttstock and the barrel/forearm — is ideal for storage or for cleaning and maintenance. BEFORE BEGINNING ANY DISASSEMBLY PROCEDURES, MAKE CERTAIN THERE IS NOT A SHELL IN THE CHAMBER. 1 With the action closed, anchor the buttstock against your upper leg and pull the takedown lever latch outward.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 13 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 14 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 15 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 16 The adjustable comb features an adjustment range of 1⁄4" for cast on and cast off adjustment in 1⁄16" increments. Cast on and cast off angle adjustments of a maximum of 1⁄8" are also possible. To adjust cast on and cast off perform the following procedure: BEFORE PERFORMING ANY ADJUSTMENTS, ALWAYS MAKE CERTAIN THERE IS NO SHELL IN THE CHAMBER.
02-260-BFA_Revised BT99 OM 8/11/03 2 Carefully adjust comb to desired cast on or cast off position (Figure 15) by sliding each post equally in the desired direction. CAST ON AND CAST OFF 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 1⁄16". Move the posts to the right for cast off and to the left for cast on.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 18 Unless adjusting drop at comb, reinstall the butt plate by sliding it back into the stock and tighten the set screws using the 3⁄32" 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 19 comb by inserting a 7⁄64" 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 20 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.
02-260-BFA_Revised BT99 OM 8/11/03 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 3⁄32" Allen wrench into the hole in the center shaft and turning the wrench counterclockwise (heavy) to increase compression.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 22 ADJUSTING LENGTH OF PULL The GraCoil system on your BT-99 shotgun also allows up to 1" of length of pull adjustment. To adjust the GraCoil system for length of pull, perform the following: BEFORE PERFORMING ANY ADJUSTMENTS, ALWAYS MAKE CERTAIN THERE IS NO SHELL IN THE CHAMBER. 1 With a 7⁄64" Allen wrench, loosen the two set screws on the right side of the stock plate by turning them counterclockwise one turn (Figure 21).
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 23 they have, refer to the last section and follow the directions to adjust the recoil reduction unit to your needs. A D J U S T I N G T H E PA D P L AT E The pad plate on your BT-99 shotgun is fully adjustable to aid in your comfort and the accuracy of your shotgun FIGURE 23 (Figure 23). To adjust the GraCoil system pad plate, perform the following: BEFORE PERFORMING ANY ADJUSTMENTS, ALWAYS MAKE CERTAIN THERE IS NO SHELL IN THE CHAMBER.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 24 5 Reinstall the recoil pad by tightening the two screws with the 3⁄32" 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 25 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 X-Full Special I Full II Improved Modified * ** III Modified IIII Improved Cylinder Modified IIIII Skeet Improved Cylinder No notches Cylinder Cylinder Full Improved Modified The words INVECTOR-PLUS mean your shotgun uses the Invector-Plus choke tube system designed for use in B
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 26 DO NOT USE BROWNING INVECTOR CHOKE TUBES IN ANY SHOTGUN BARRELS NOT SUPPLIED BY BROWNING. ALSO, DO NOT USE ANY OTHER CHOKING DEVICE IN ANY SHOTGUN BARRELS SUPPLIED BY BROWNING. USE ONLY THE APPROPRIATE GAUGE AND TYPE OF CHOKE TUBES MARKED INVECTOR OR INVECTOR-PLUS.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 27 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 28 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 29 CLEANING PROCEDURES — BE CERTAIN YOUR GUN’S 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.
02-260-BFA_Revised BT99 OM 8/11/03 11:48 AM Page 30 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.
02-260-BFA_Revised BT99 OM_Cvr 8/11/03 11:53 AM 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.
02-260-BFA_Revised BT99 OM_Cvr 8/11/03 11:53 AM BROWNING.
