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Posted: 11/5/2002 9:22:25 PM EDT
Does anyone if 45 Super can be fired in any of the 45ACP AR-15 uppers?
Link Posted: 11/6/2002 7:36:04 AM EDT
im pretty sure u cant it may fit maynot but remember the rules of gun safety "use only ammunition in the firearm it is chambered in"


45 super in a 45 chamber doesnt sound like a good idea to me. i know u can shoot 45 acp in a super chamber but thats designed for both.
Link Posted: 11/6/2002 8:23:21 AM EDT
That's something I would avoid. I don't think it would chamber anyway. Better to err on the side of good judgement, and not try it.
Link Posted: 11/6/2002 9:36:00 AM EDT
It's done all the time in pistols, with merely the change of a recoil spring. I don't see why an AR-15 would be different (I may be wrong though). It's external dimensions are the same as the .45 ACP. I'm pretty sure I've read posts by people who have shot it out of ARs.

Check out other gun boards and do a search, or give these manufacturers a shout...

www.texas-ammo.com/45super.htm
www.triton-ammo.com/


Link Posted: 11/6/2002 9:40:51 AM EDT
The 45 super has the same dimensions as the ACP.
The difference is the thickness of the case walls. Super is made thicker to withstand the added pressures of the load. I would not try it myself unless I knew that my upper could handle the added pressure. The other concern would be the amount of recoil. It may not cycle correctly.
Link Posted: 11/6/2002 9:41:51 AM EDT

Originally Posted By snoogins70:
That's something I would avoid. I don't think it would chamber anyway. Better to err on the side of good judgement, and not try it.



It would chamber just fine.

The only question is if the bolt/barrel/etc will handle the extra pressures.

I shoot .45 Super all the time in my stock USP .45
Link Posted: 11/6/2002 11:19:00 AM EDT
The .45 Super case is thicker only arount the case head. The reason for this is that 1911 barrels are unsupported. I don't know, but I don't think that is the case with AR-15 uppers. There is no difference in the strength or thickness of a 45 super bbl. The reason I asked is that I have a bunch 45 super ammo and no longer have a 45 Super.
Link Posted: 11/6/2002 11:25:34 AM EDT
A friend inquired w/ OLY arms regarding this very point. They said, YES, our uppers can take the added pressure.

I would check w/ them first, before I believe the ramblings of a guy posting on AR15.com...
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