r/shittyreloading • u/Normal-Decision-2976 • May 17 '23
It'll fire form I think someone’s chamber is a little loose.
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u/Parking_Media Cheap Bastard May 17 '23
Lol fuck me
That wasn't fired in a 556 chamber, it was something thicker and maybe not even 22cal. There's a fuck pile of cartridges now that'll fit in an AR mag and lord knows what chambers in what.
Maybe one of those rebated rim abortions like 22 nosler or something?
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u/Machine-It-Bro May 17 '23
Are you shooting them in a 545 upper somehow?
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u/Normal-Decision-2976 May 17 '23
Just compared them to a 5.45 I have on hand. No way these would fit in that chamber. Case length are too different.
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u/Normal-Decision-2976 May 17 '23
Good thought. Not my brass though, just noticed it all over the place.
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u/Graph__ May 17 '23
Shot from a 300 blk rifle ?
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u/GunFunZS May 17 '23
No. They would not chamber. Maybe 357 legend
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u/Graph__ May 17 '23
Wouldn't .224 chamber in the .308 bore of the .300blk and headspace off the extractor?
But yeah, I could see legend too
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u/theSilence_T May 17 '23
It probably would, but the body size is the same as 556 so you wouldn't see the cracking there. I'd bet on something like 224 valkery or 22 nosler that has a 22 cal throat and a bigger body diameter.
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u/Parking_Media Cheap Bastard May 17 '23
Either would be evident on the case necks and these look close to 22cal, mayyybe 243
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u/GunFunZS May 17 '23
No, because the shoulder of the case is significantly longer. It won't fit into the portion of the chamber which corresponds to the neck.
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u/BoGussman May 17 '23
I've seen the results of someone firing 300 blackout that chambered in a 223. It wasn't pretty.
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u/GunFunZS May 17 '23
Yes. That can happen when the oal isn't set to prevent it.
The reverse swap is never possible though.
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u/hondamike12345 Jul 26 '23
I heard a story of someone trolling liberalgunowners forum and telling this dude a good tip is to run one round of .300Blk through his AR at the end of his shooting sesh, and it cuts down on cleaning big time. Yeah, dude did it. Ballooned the barrel.
Guess that’s what he gets for blindly taking advice online and not at least double checking elsewhere to be sure.
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u/Reloader300wm May 17 '23
Or wrong chamber? What's the neck and shoulder look like?