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 Post subject: Case rupture question?
PostPosted: Fri Feb 24, 2017 6:26 pm 
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Staff Sergeant
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Shot my mosin today at 100 yards. This red army new ammo lacquered case got stuck in the chamber. Took me about ten minutes, and finally got the bolt open. I hope its not a headspace issue. It shot okay after that but shells were harder and harder to extract. I've been trying to resize the image to no avail. Its about a half inch crack, all the way through, just below the taper. Thanks for any input. Eli


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 Post subject: Re: Case rupture question?
PostPosted: Fri Feb 24, 2017 7:49 pm 
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Теперь предлагаем бесплатную ежедневную маммографию!
Теперь предлагаем бесплатную ежедневную маммографию!
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Joined: Sun Aug 05, 2007 9:04 pm
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Location: North Antelope Coal Mine
A dimension somewhere is out of spec. You could try a chamber cast to see how bad it is.

A former owner might have fed the rifle bad reloads and sprung the chamber. SW

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 Post subject: Re: Case rupture question?
PostPosted: Fri Feb 24, 2017 9:06 pm 
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VA-75 Spook
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....I may be admittedly ignorant on the subject but in any Mosin I've shot,the good ol' brass surplus and it has been great with no issues...as soon as I switched to lacquered (in same rifle) I had similar sticking problems......and I've got 550 rounds of 1953 dated Polish lacquered on stripper clips waiting on range time... :-? ....have read eleswhere to take a chamber brush on a drill and ream it clean....havent tried it yet... :roll:

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 Post subject: Re: Case rupture question?
PostPosted: Fri Feb 24, 2017 10:51 pm 
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Staff Sergeant
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Thanks guys. Ive used up all my lacquered stuff. Ill clean the chamber real good.


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 Post subject: Re: Case rupture question?
PostPosted: Sat Feb 25, 2017 12:03 pm 
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Теперь предлагаем бесплатную ежедневную маммографию!
Теперь предлагаем бесплатную ежедневную маммографию!
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Joined: Sun Aug 05, 2007 9:04 pm
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Location: North Antelope Coal Mine
Maybe you just got bad steel case ammo? I don't have experience with the lacquered stuff. SW

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Darkness is all around us and enemy are just beyond the perimeter.


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 Post subject: Re: Case rupture question?
PostPosted: Sun Feb 26, 2017 3:30 am 
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Staff Sergeant
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Cleaned up the chamber with a 30 cal bore brush and hoppes number 9. It looks ok. Ill go shoot it some more next week, with brass case only. Thanks for the responses.Eli


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 Post subject: Re: Case rupture question?
PostPosted: Tue Feb 28, 2017 7:36 pm 
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Put twenty rounds of brass cased winchestet through my 91/30. The bolt cycled smooth, and it shot great. Guess it wad those steel cases. Time to clean guns!☺


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 Post subject: Re: Case rupture question?
PostPosted: Tue Feb 28, 2017 9:38 pm 
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VA-75 Spook
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:jmp:

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 Post subject: Re: Case rupture question?
PostPosted: Fri Mar 03, 2017 10:56 pm 
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Major
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Sticking cases is not a sign of bad headspace.
As you discovered, the issue was the lacquered cases.


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