7mm or 300

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BOSS

Harcy, no I have not noticed anychange of impact. MY browning A bolt in 300WSM loves the Winchester 180 grain XP3 factory load. They go at 2980 to 3000 on the chrony and shoot subMOA for 3 shots.(When I do my part) My Boss setting is #1. I have switched the boss and the non boss at the range and seen no diffrence i impact.
 
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