Thread: Impact of chamber "upgrade" on accuracy?
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  #7  
Old 01-30-2011, 01:45 PM
Mike Bell Mike Bell is offline
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Join Date: Nov 2010
Posts: 112
im not positive but I thought some guys on here were test shooting the 300blk ammo in the .300/221 chambers with no problems. I have a tp555 300/221 barrel and Im going to try the 300blk reloading dies. and see what happens
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