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Old 03-14-2020, 01:50 AM
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BLUEDOT37 BLUEDOT37 is offline
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Default 45 Super, 200gr XTP

Quote:
Originally Posted by Johnnn01 View Post
...I plan on loading some 200 grain 45 super rounds with Longshot and Power pistol.
...I want to hit 1200 fps with the 200 grain
Back when I started working up loads in my Colt Series 70 Mk.IV 1911, prepped for 45 Super, I set 10.4gr/Power Pistol as it's max load using a HDY 200gr XTP bullet, CCI-300 primer & 1.200" COAL in S-L 45 Super cases.

FWIW, QuickLoad calculates this at 1211mv & 652me @ 26.8K psi from a 5" bbl. (Pressure drops to 25.0K psi & mv to 1190 with a 1.220" COAL.)

This was backed down from 10.8gr/P-P because the unsupported chamber's mouth would bulge cases.

I use this in my 4506 & 4586 as well even though their fully supported chambers are good for more. I like the way the S&Ws handle the recoil (feel) better than the 1911.

Work-up slow & use at your own risk.

.
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