Author Topic: 45 SUPER  (Read 3259 times)

Offline 345desoto

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45 SUPER
« on: December 24, 2011, 06:58:39 AM »
I've got a few questions on the 45 Super vs the 45 ACP.  The 45 ACP case can safely handle between 19,900-22,000 CUP.  The 7.62 NATO round can safely handle around 52,000-55,000 CUP  This difference in CUP will run the average FPS of the 230 grain 45 round up from 880 fps to 1,100 fps.  I cut once fired Military 7.62 brass down to 45 ACP dimensions for this.  MY question is, can anybody tell me if the RMW upper chamber and bolt face for the 45 ACP will safely handle the increased 45 Super chamber preasures... 

Offline tlagnhoj

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Re: 45 SUPER
« Reply #1 on: December 27, 2011, 01:17:29 PM »
DELETED BY Tlagnhoj:
« Last Edit: May 10, 2012, 06:36:35 PM by tlagnhoj »

Offline Tango Chaser

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Re: 45 SUPER
« Reply #2 on: December 28, 2011, 06:34:20 AM »
If RMW is using .450 BM bolts, .45 Super will not be a problem. The .450 BM was originally designed to shoot up to 60,000 but all factory loaded .450 BM is loaded to around 38,000. These numbers come from the inventor of the .45 Professional which is now the .450 BM. My research shows .45 Super to be in the neighborhood of 35,000.

I routinely shoot .45 Super in my blowback Oly with no issues so a locked breach bolt should pose no problems.