This is very true. We choked down several short AR barrels. We shot a bunch of them on the same day, and it's amazing how unique the recoil impulses are. Almost no two are alike when you get into really feeling the gun run.
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From my experiences using one issued to me it is a work horse like no other. It has seen rain, snow, sleet, below zero, dust, dirt, heat, lack of lube, lots of lube, crap ammunition, good ammunition, and it just chugs along churning out brass.
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