Browning-Winchester Boss

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pwillie I'm sorry to say that neither of my Brownings have the boss. They are however super accurate without them. A friend has a BAR in 300 win mag with the boss and he isn't a shooter. With his old 270 he was lucky to hold 3 shots into 3" at 100yrds. Anyone else shooting the gun would keep them into 1 1/2". With the AR with boss he keeps them into 3/4" consistantly. Says something for the boss. FRJ
 
Thanks for your reply. I am looking for some info about different setting used for different calibers. I re-barreled my Model 70 to a 257 Weatherby,and would like to know if anyone else has done this.?
 
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