Max Adjustable Rib Instructions Owner's Manual Supplement

ALWAYS KEEP THE MUZZLES POINTED IN A SAFE DIRECTION. BEFORE STARTING ADJUSTMENT OR DISASSEMBLY PROCEDURES, ENSURE THE “SAFETY” IS IN THE ON SAFE POSITION. OPEN THE ACTION AND VISUALLY INSPECT THE CHAMBERS TO BE ABSOLUTELY CERTAIN THE FIREARM IS COMPLETELY UNLOADED. FAILURE TO FOLLOW THIS WARNING COULD RESULT IN SERIOUS INJURY OR DEATH.

PLEASE READ AND UNDERSTAND ALL INSTRUCTIONS AND WARNINGS IN THE OWNER’S MANUAL SUPPLIED WITH YOUR SHOTGUN AND THOSE FOUND IN THIS SUPPLEMENT BEFORE USING YOUR SHOTGUN. FAILURE TO FOLLOW THESE INSTRUCTIONS, OR FAILURE TO FOLLOW ANY SAFETY WARNING, MAY RESULT IN INJURY OR DEATH TO YOURSELF OR OTHERS, OR MAY CAUSE DAMAGE TO YOUR FIREARM.

If your shotgun owner’s manual is missing, contact the Browning customer service department immediately at (800) 333-3288 for a free copy, or download one online at browning.com.

DISCHARGING FIREARMS IN POORLY VENTILATED AREAS, CLEANING FIREARMS, OR HANDLING AMMUNITION MAY RESULT IN EXPOSURE TO LEAD AND OTHER SUBSTANCES KNOWN TO CAUSE BIRTH DEFECTS, REPRODUCTIVE HARM, AND OTHER SERIOUS PHYSICAL INJURY. HAVE ADEQUATE VENTILATION AT ALL TIMES. WASH HANDS THOROUGHLY AFTER EXPOSURE.

WEAR EYE PROTECTION WHEN DISASSEMBLING AND CLEANING YOUR SHOTGUN TO PREVENT SPRINGS, SPRING-LOADED PARTS, SOLVENTS, OR OTHER AGENTS FROM CONTACTING YOUR EYES, RESULTING IN INJURY.

Description

The Max Adjustable Rib allows you to adjust the angle of the rib to achieve a pattern percentage between 50/50 and 90/10 for trap-style shotguns and 50/50 and 70/30 for sporting-style shotguns. This adjustment lets you customize point of impact (POI) and sight picture, resulting in improved shooting performance and higher scores.

ALWAYS KEEP THE MUZZLES POINTED IN A SAFE DIRECTION. BEFORE ADJUSTING THE RIB ON YOUR SHOTGUN, ENSURE THE “SAFETY” IS IN THE ON SAFE POSITION. OPEN THE ACTION AND MAKE CERTAIN THE SHOTGUN IS COMPLETELY UNLOADED. FAILURE TO FOLLOW THESE WARNINGS COULD RESULT IN SERIOUS INJURY OR DEATH.

Point of impact (POI) is determined by patterning a shotgun and determining the relationship between where you were aiming and where the actual center of the pattern is. Point of impact above the actual aiming point allows you to keep the clay bird in view constantly — just above the rib — as you swing and shoot.

The standard point of impact for a trap-style shotgun is approximately 6-8 inches above the point of aim at 40 yards. For example, most Browning trap shotguns come pre-set from the factory with a POI that is 6 inches (15.25 cm) above point of aim at 40 yards. The standard point of impact for a sporting-style shotgun is approximately 0 inches (0 cm) above the point of aim at 40 yards.

ALWAYS KEEP THE MUZZLE POINTED IN A SAFE DIRECTION. BEFORE ADJUSTING THE RIB ON YOUR SHOTGUN, ENSURE THE “SAFETY” IS IN THE ON SAFE POSITION. OPEN THE ACTION AND MAKE CERTAIN YOUR SHOTGUN IS COMPLETELY UNLOADED. FAILURE TO FOLLOW THESE WARNINGS COULD RESULT IN SERIOUS INJURY OR DEATH.

Adjusting the Rib

The point of impact adjustment is on the front end of the rib and is adjusted by a thumbwheel located between the rib and the barrel near the muzzle (Figure 1). The thumbwheel has a spring detent that gives audible and tactile clicks as it is adjusted.

NOTICE: TAKE CARE NOT TO FORCE THE THUMBSCREW BEYOND ITS MAXIMUM UP OR DOWN TRAVEL.

Turning the thumbwheel clockwise lowers the front of the rib. For trap-style shotguns, when the front of the rib is at its lowest setting, the POI is 12 inches (30.48 cm) above point of aim and the POI percentage is approximately 90/10.

For sporting-style shotguns, when the front of the rib is at its lowest setting, the POI is 6 inches (15.25 cm) above point of aim and the POI percentage is approximately 70/30.

Turning the thumbwheel counterclockwise raises the front of the rib. When the front of the rib is at its highest setting, the POI is 0 inches (0 cm) above point of aim and the POI percentage is approximately 50/50.

When your desired point of impact is achieved, the rib requires no additional adjustment. The detent mechanism of the thumbwheel will retain your point of impact setting.

NOTE: Resetting your drop at comb measurements may also be necessary whenever the plane of the rib is changed to alter the point of impact.

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