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Old July 1, 2013, 03:41 PM   #46
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 8,927
MattSchlock, I've no idea on anything about an Ackley improved chamber except their only objective is (in my opinion) to get as much velocity possible from a standard case blown out as much as the brass will allow and still clean up the original chamber. But their larger and more angled shoulder area will better hold the case in place when the firing pin strikes them and that's a plus for accuracy as well as case life.
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