BY DAVE EHRIG Despite the groundhog's fame for predicting spring and selling lottery tickets, the collapsed cavities this hole-digger creates have been responsible for breaking legs on a myriad of livestock and causing innumerable property damages. Groundhogs often need to be hunted. And for the muzzleloader hunter willing to pursue them, they represent a quality hunting experience, and a perfect way to get in some summertime practice. Muzzleloader hunters can hunt groundhogs the same way they hunt deer in the fall and winter. You can use the same primitive flintlock, upgraded sidehammer percussion or modern inline ignition and scoped muzzleloader. And if you hunt from tree stands or a ground blind at the edge of a field, they'll serve you well. 58 But if you want some good cardio exercise and another way to preseason scout for deer, try walking up on some ground grizzlies. The shots you'll get in different situations and at varying distances will help you become more familiar with your rifle. Just remember to wear a fluorescent orange hat, because the top of a hairy head - my head is not included in this count - at a distance can appear groundhog-like. HUNTING SETUPS Deciding on whether to use blackpowder or replica powder depends on your gun's ignition system. Blackpowder works in all muzzleloaders, but flintlocks don't use modern replica powders effectively. SMO