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Old April 28, 2009, 02:28 AM   #15
ballardw
Senior Member
 
Join Date: September 19, 2008
Posts: 1,406
I'd try chambering a round from the magazine and ejecting without firing. Look to see if the bullet is engraved by the rifling or indications that the neck of the cartridge has been compressed against the bullet.

Cheap test at least. If you see either of those conditions the chambering is causing overpressure.
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