I see. Interesting. Okay, you can find hotter loads, but none that kill any deader than Hank Williams Jr's favorite load:
Hard 260 SWC lead w/ gas check
20 to 21.0 of H4227 (IMR is close, but sometimes faster, start at 19.0 with IMR)
CCI 350 magnum primer
A medium to heavy crimp
I've used WW, RP and Federal brass with no difference in outcome at all, so your choice. My 4 5/8" Ruger churns out 1000 fps with this load, your longer barrel (with no cylinder gap) should give a bit more. With any critter less than five feet thick, watch the backstop - this load will penetrate five feet of critter! You'll see some unburnt 4227. Ignore it.
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