Thread: BAR won't group
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Old June 6, 2019, 11:49 AM   #24
Jim Watson
Senior Member
Join Date: October 25, 2001
Location: Alabama
Posts: 15,684
Browning allegedly "discovered" the BOSS tuner by noticing that a slight shortening of the barrel would improve accuracy of problem rifles.

But I would scour out the gas system first.
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