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Found at the range. What causes this? There were a few of these.
Like a nice pinstripe suit, but I’m guessing it’s not good. I’ve never seen one quite like this.
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1 Reply
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Fired from a fluted chamber, likely a G3/CETME clone.
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Hk fluted chamber
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Fluted HK chamber. Helps the roller delay out.
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Roller delayed blow back. HK G3 or clone
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Pretty much any H&K Rifle. G3 or Cetme. Or if it was a more exquisite gentleman an SL-7
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I have/had a bunch of those I fired from a HK91. I reloaded them once but they’re tough to resize.
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Someone has a cetme or an hk
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PTR
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Roller delayed rifle with a fluted chamber
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Ya my POF Revolution has a similar pattern on the neck area due to there dual extraction grooves
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This is the result of the cartridge being fired.
… nothing?
So several things could cause those stripes. Deburring the case with a dull blade, incomplete expansion, some strange crimping style, or the chamber itself.
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HK fluted chamber
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Fluted chamber.
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Svt-40 does this
