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slightly bulged casings coming from HP22A

PostPosted: Wed Jul 18, 2018 11:12 pm
by Flowmaster
I've got a Phoenix Arms HP22A and its experiencing a strange issue with shell casings. The gun works just fine, but the base of some of the shell casings seem to puff out a little bit. What could be the cause of this? Its not all the way around, just in one spot. Is the chamber not well supported along the feed ramp or extractor cutout? I've never experienced a ruptured shell casing in this gun, but the brass bulging out has me wondering if its just a matter of time. Did any of you experience brass deformation shooting an HP22A?

Re: slightly bulged casings coming from HP22A

PostPosted: Thu Jul 19, 2018 5:52 am
by adam01364
Yup, the fired casings are a little bulged on mine probably 90% of the time. I attributed it to the chamber not being supported at the feed ramp; never considered the extractor cutout as the culprit. Like you said, I've never had any problems with the functioning of the pistol.

Re: slightly bulged casings coming from HP22A

PostPosted: Mon Aug 06, 2018 5:26 pm
by adare
The Chiappas M9-22 has the same issue and I believe its just for that reason the free ramp is slightly not supporting the full dia. of the casing.