The rifled barrel of the Browning A-Bolt shotgun spins sabot slugs like a bullet in a centerfire rifle. Upon exiting the muzzle, the slug continues to spin to the target stabilizing the slug. This configuration has been tested and optimized for accuracy and, consequently, is intended for use with sabot slugs only.
RIFLED CHOKE TUBE MODEL —
The Rifled Choke Tube model utilizes a smoothbore barrel with the muzzle threaded to accept Browning's Standard Inyector choke tubes. Rifled Choke Tube models are supplied with Browning's specialized 5" rilled choke tube. This tube has been extensively tested and provides the ideal configuration and rate of twist for accuracy with sabot as well as Foster-type slugs.
Because the barrel is threaded to accept Standard Invector choke tubes your shotgun is also supplied with Browning's Extra-Full special choke tube. This tube delivers extremely dense and effective patterns of buckshot. For extra versatility, this tube can also be used for turkey hunting, delivering tight patterns of #4, #5 and #6 lead shot.
Remember, because of its specialized design, the Browning rifled choke tube is intended for use with either sabot or Foster-type slugs.
The Invector Choke tube system is explained in detail below.
DEVICE IN ANY SHOTGUN BARRELS SUPPLIED BY BROWNING. USE ONLY CHOKE TUBES MARKED INVECTORL
CAUTION: WHENEVER HANDLING ANY SHOTGUN FOR THE PURPOSE OF REMOVING OR INSTALLING A CHOKING DEVICE, MAKE ABSOLUTELY CERTAIN THE GUN IS FULL Y UNLOADED, THE MAGAZINE REMOVED AND THE BOLT OR BREECH IS OPEN! NEVER ATTEMPT TO REMOVE OR INSTALL A SHOTGUN CHOKING DEVICE ON A LOADED FIREARM!
TUBE REMOVAL -
1 UNLOAD YOUR SHOTGUN FULL Y. INSPECT THE CHAMBER AND MAGAZINE TO MAKE SURE THEY DO NOT CONTAIN ANY SHELLS.
2 Bring the bolt to its fully rearward position, and place the ' safety" in the "'on safe'' position.
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.
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