I have a new problem, two large indoor/outdoor cats and a large woodchuck in my backyard. I already paid about $1100.00 this year to repair the damage from a fishercat fight with my 19# 6 year old black cat and I don't want to repeat that. He seems a little cocky and will take most critters on, I said he is big, not smart. The other big guy only keeps other cats off HIS land, he doesn't hunt at all, only fights and chases other cats. My question is will a .177 cal. pellet put a woodchuck down with a head shot? It's supposed to go around 1200 fps, depending on pellet weight. I live on 3/4 of an acre and the people on either side of me don't care if I shoot a pellet gun. I can't use anything else. Does anybody have any experience using .177 pellet rifle at about 30 to 40 yards, max. I can keep 5 shots in about a Quarter sized hole using open sights with a rest. This would be a shot off my deck, sitting using a spring break barrel Gamo. The woodchuck likes to eat windfall small apples by and maybe living under my shed. Thanks in advance - Arlie