First you have to find out whats legal to use in your state? What caliber& energy min-required? Here i couldnt hunt big game with most of my pistols- even my 44 mags.could be questionable i think-as most loads wont have the min energy required? (1000ft/lbs at 100 yrds?)(tho - i dont know how they check these things like load energy in the field- if questioned)
But i dont hunt with pistols....if i did id use a 44 mag& keep the shot within a reasonable distance
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But your laws etccould be totaly diffentthen mine.