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.32 SWL case crack

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BE Mike
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Post by ermakevin 3/17/2014, 2:42 am

has anyone seen a crack like this?
what would cause it?
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ermakevin
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Post by BE Mike 3/17/2014, 1:28 pm

Yes, I have seen this in Winchester factory match .38 SPL,148 gr. HBWC ammo. They produced a certain lot of ammo with weak brass way back when. Is this Winchester brass?
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Post by DavidR 3/17/2014, 2:51 pm

Ive seen it with very old ammo, mostly surplus stuff but not in anything that small In cal.
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Post by rfmiller 3/17/2014, 7:01 pm

I had a bunch of 44 mag that I reloaded about 25 years ago do that when I shot them last year.  Threw the rest away.  I can't think of why they did it, it was a relatively mild load.

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Post by Guest 3/19/2014, 9:20 pm

I've had it happen in the past with brass that was either work hardened, or had been cleaned with Brasso. Brasso actually hardens the brass a bit because of the ammonia in the formula. Bottom line? The brass is a bit too hard and cracks when it tries to obturate and seal the chamber.

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Post by Rob Kovach 3/20/2014, 1:06 am

The word of the day is "OBTURATE"   Smile
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Post by jerry lehrer 3/20/2014, 5:46 am

I would guesstimate that you have an oversize chamber.

BTW-- Ammonia in Brasso "dezincifies" the brass, thus weakens it.

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Post by ermakevin 3/20/2014, 12:18 pm

this is brand new out of the box brass.
Hirtenberger from Larry's Guns,
this is why i can't under stand it why it cracked.
ill have to email Larry just to notify him.
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