You really won't need to load very heavy with this gun at 60 yds for whitetail. I used to really load my BH way hotter than necessary. This year I'm going to try 300 gr RNFP cast in Lee mold using air cooled WW @ 900-1000 fps. A very good read with lots of info on loads for 45 colt:
http://www.customsixguns.com/writings/dissolving_the_myth.htmI've never had a deer go over 35 yds with well placed shot from 45.
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