I use my 40 for Deer :grin:
And just got an email from Charlie Burton telling me my 38 cal barrel is shipping - woooo hoooo.
Look out Bambi, new rifle coming after you next season.
And yes, I'm serious, I WILL use a 38 cal for Deer. It's more than enough for my style of hunting.
So while others consider a 40 "pretty small", I consider it a little "big" for small game (unless Eastern Ontario Whitetails are considered small game).
But that's what makes our sport/hobby great.
For Bunnies, I would lean more towards a 36 cal or a 38 if you want to be a little "different" (at least round balls for the 38 are easy to source - Hornady makes .375's for 36 cal cap/ball revolvers - will fit a 38 cal rifle barrel "perfectly").