User Guide

given ammunition. As in any sighting-in process, the best results are
obtained through trial and error. You may need to retune the BOSS®
should you decide to shoot ammunition of different brands, lots
and/or types.
Be sure to keep a record of your rifle’s Sweet Spots, especially if you
use your rifle for different game and shoot different loads.
CAUTION: WHEN ADJUSTING THE SWEET SPOT, NEVER SET THE BOSS
®
BEYOND THE 10 SETTING.
With the BOSS® set beyond 10, it could become loose, misaligned or
disengaged when firing the rifle. This could result in serious injury to
yourself or others.
IMPORTANT: Each time you set the Sweet Spot, the body of the
BOSS® must be tight against the micro-adjustable lock nut. Failure to
keep the components tightly locked will adversely affect accuracy.
NOTE: The barrel mounting screw and trigger guard screw on the A-
Bolt should also be fully tightened (Figure 9). If the barrel mounting
screw and trigger guard screw are loose on your A-Bolt, tighten the
barrel mounting screw before tightening the trigger guard screw. On
the BAR, the forearm locking screw should be kept fully tightened
(Figure 10) to obtain, and retain, the best possible accuracy from your
BOSS®-equipped rifle.
9
FIGURE 9
FIGURE 10
Barrel Mounting Screw
Trigger Guard Screw
BAR Forearm Locking Screw
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