I help my father-in-law get rid of his groundhog problem, same situation as you. I first tried some field points but unless you make a headshot you have to put three and four arrows in them. And that seems to piss them off for some reason, I couldn' t imagine why? You' d be better off using broadheads. Groundhogs are a blast to shoot, the fuzzy overgrown rats they are. Or you could try a pellet gun shooting the pointed type pellets, my father-in-law also does this, but you have to be pretty close and shoot them behind the soft part behind the ear. I think stick with the bow and have some fun practicing for deer season.