Whichever you have already that you can shoot accurately at the ranges you want, if you have both, whichever is more accurate in your hands at the ranges you will shoot. Crows are easy. 10 ft-lbs on target, not muzzle is more than enough with either to make clean kill if you do your part.i know both will get the job done, buts whats everyones favorite?
I,ve done very well with .177 Gamo Varmint w/ Gamo Tomahawks.Ive killed a ton with .177 with howler slugs shooting out of daystate redwolf. It comes down to ammo and shot count