.45 Super Ballistics


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jonnyc
April 3, 2010, 11:59 PM
A bit ago I started working up loads in .45 Super for my .45 ACP Enfield carbine. I'm currently getting 1-1.5 inch groups at 50 yds. and 2-3 inch groups at 100 with 9.5 grains of Power Pistol and 230 grain FMJ bullets. A friendly load with absolutely no signs of over-pressure. Can someone tell me the ballistic calculations for that load; pressure and Ft.Lbs.?
Thanks.

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DWFan
April 4, 2010, 08:53 AM
Beartooth Bullets has a multitude of calculators available.
http://www.beartoothbullets.com/rescources/index.htm

jonnyc
April 4, 2010, 03:37 PM
Guess I'll have to borrow a chrony. Is there any way to guess-timate using the known info?

rcmodel
April 4, 2010, 03:51 PM
Not unless you tell us the barrel length of your Enfield carbine.

If that were known, someone here with Load-From-A-Disk software can come pretty close.

rc

jonnyc
April 4, 2010, 04:35 PM
Ah, no problem...16.5 inches, built on an Enfield No.4 action.

jonnyc
April 8, 2010, 10:37 PM
Anybody have what Rcmodel mentioned?

Ridgerunner665
April 8, 2010, 10:41 PM
Power Pistol is as good as it get for 45 Super...but the 45acp (and 45 Super) don't get much help from barrel length past 6 inches or so.

Your load is likely running right at 1,150 fps. (+ or - 50 fps, depending on chamber and bore specs)

I get 1,000 fps from 8 grains of Power Pistol fired from a 5 inch XD. (230 grain XTP's)

armarsh
April 8, 2010, 11:52 PM
Quickload says 27958 psi, 1382 fps, 976 ft-lb. Used default 1.275 OAL.

jonnyc
April 9, 2010, 03:43 AM
Thanks!

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