I've shot hundreds of such loads, mostly at gophers over the last couple years. I use 10 or 11 gr under just about any bullet from 35 to 60 grains and get 2500 + or - for any of them. Max is somewhere around 14 gr but above 11 grains it starts to get too loud for my purposes.
I usually use CCI small pistol mag primers since they work as well as the rifle primer in this use and I happen to have a bunch I'll never use otherwise.
It ought to work just fine for small game, depending of course on what you aim it at!
Cheers
Redial