Creek, I shot my elk this year with a .243, and she was at 200 yards!
Worked fine! The SKS on the antelope was the stangest gun I have seen used on game, but after some thought I don't think it was inapropriate.
I once used a .44 Mag S&W 629 on antelope. That might have been inapropriate because i couldn't hit anything! I'm not a good long distance pistol shot!