I have both in the same gun...a Kimber Stainless Target II that has slides for both 10mm and .45...either caliber works fine...

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The 10mm is limited to a 220 grain bullet 1200 fps while the .45 will run 255s at almost 1100.

I've settled on 200 grain Hard Cast 10mms at 1250 fps and 155/165s Jacketed, Plated and Cast at 1300.

.45 Super, 230s at 1100 and 240-255s at 1050. I pushed up quite a bit further but backed down to the velocities Buffalo Bore are getting...


As to converting a .45 ACP to Super:

Flat Bottom Firing Pin Stop
Extra Power Firing Pin Return Spring
24#+- Recoil Spring
26-30# Main Spring
Shock Buff is a nice addition

Bob

If you can not deal with reality, reality will deal with you....