Browning BAR ShortTrac Owners Manual - Page 18

INSTALLATION OF SPACERS TO ADJUST DROP AT COMB AND CAST ON/OFF Six spacers have been included with your BAR ShortTrac or LongTrac rifle. These spacers fit between the buttstock and receiver, allowing adjustments to the drop at comb, heel and cast on/off. Each spacer is labeled/stamped for what each does. One of these six spacers, the neutral spacer (No. 2), is already installed on your rifle. DROP AT COMB AND HEEL: Adjusting the drop at the comb allows you to align your eye perfectly with a scope. The drop measurement of the comb is determined by measuring the distance between the axis of the bore and the forward most point of the comb. The drop at heel is determined by measuring the distance between the axis of the bore and the top end of the buttstock or recoil pad. Spacers labeled 1, 2, and 3 adjust drop at comb and heel. They do not give any cast on/off adjustment. The stock remains straight. These spacers with their respective stamps are identified here: 1 Raises the comb approximately 1⁄16", and heel approximately 1⁄8". 2 Neutral. This spacer is already installed on your BAR rifle. It sets drop at comb at 5⁄8", and heel at 11⁄8". 3 Lowers the comb approximately 1⁄16", and heel approximately 1⁄8". CAST ON AND CAST OFF: Adjusting cast on and cast off allows you to achieve a perfect fit from the stock to your face. This is a most crucial adjustment, as it determines how correctly and consistently your eye will line up with a scope. Some right-hand shooters like the stock to bend away (cast off) from the face, while many left-handed shooters prefer a bend to the left (cast on). A rifle correctly adjusted for cast on and cast off will have you looking directly into the scope. You will notice that the two opposing edges of spacers marked 1R 1L, 2R 2L, and 3R 3L differ in thickness. In addition to adjusting the cast on/off to the right or left 16