I am getting into varmint hunting , to help my rabbit population some on my property . I have noticed a decline in the number of rabbits that my dogs jump this year as compared to last year . I was deer hunting and got a nice gray fox a few weeks ago and I let my nephew and one of his in-laws hunt the other night and they got a bobcat . What caliber would you choose ? They were using a 17 hmr , I think that is to small , but I do like that it is not so loud . I didn't even hear the shot from inside my house when they shot the bobcat behind my house . I figure a lot use a 22-250 and 223 . I reload 223 so that is a plus , but both of them are loud . I was thinking 17 hornet and 204 ruger . Biggest varmint would be a coyote and distance , max 300 yards .