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Posted: 8/23/2014 11:15:00 PM EDT
| In the 2 AR's I've built I've noticed about 25% of my spent brass have case neck splits. I'm using a Black Hole Weaponry barrel and a SAA M-16 bolt on both rifles. The ammo is some Dallas Reloading Service ammo I bought in a lot of 1000 rounds about 14 years ago. Did I get a lot of ammo that has been reloaded many times or with otherwise weak cases? The Black Hole Weaponry barrels seem to have a good reputation and I've had no other issues. Could this be a head space issue? |
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*Always* heed Dano523's advice.
Out of several thousand "once-fired" cases of my own, and several thousand or so "range brass" I've bought in bulk, I've only discarded maybe 30~40 for neck or body splits, and a handful for other questionable conditions, so if you're seeing 25% splits, you're getting over-used brass. HTH 
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Quoted:
*Always* heed Dano523's advice. Out of several thousand "once-fired" cases of my own, and several thousand or so "range brass" I've bought in bulk, I've only discarded maybe 30~40 for neck or body splits, and a handful for other questionable conditions, so if you're seeing 25% splits, you're getting over-used brass. HTH May not be over used brass, but as stated, the once fired brass cases chemically cleaned instead of tumbled cleaned, which can cause the brass to become brittle if the correct chemicals are not used to clean brass cases instead. |
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Quoted:
Sounds like they chemically cleaned the brass. Is there a reason to chemically clean over tumbling? Is it cheaper? Faster over tumbling to clean and de-tarnish the brass, but could end with the brass stress corrosion cracking depending on the chemical cleaner/method used. |
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