Varmint caliber?

[Catfish]

I agree with Rocky, you can`t go wrong with a good .223. If you get carried away and shot a bunch of ammo real fast your less likely to burn out the barrel than with one of the hotter rounds. Ammo can be had any where and your point blank rnage is not that much less than a .22-250. The varmints you hit can`t tell what caliber they were hit with, and neather can the ones you miss.