What do you guys think of the .22 CB for use on groundhogs? I've taken some with .22LR 40 gr. HP's before, but I need something quieter than that. My mom has a few 'hogs eating up her garden, but there are houses on both sides of hers. I might use Aguila SSS 60 gr. ammo, but I don't want to take the risk of overpenetrating since it's a residential area.