Thought I post this in a separate thread rather than muddle up EddiePA's 45 Colt info.
Ruger SRH 7.5" barrel
Double Tap 320 WFN 1315 fps 1229 KE
Double Tap 240 Keith Style SWC 1455 fps 1129 KE
Hornady 240 XTP 1403 fps 1049 KE
Hornady 300 XTP 1107 fps 816 KE
Ran this about 2 or 3 years back.