As far as the Pennsylvania spring season, PA will let you use a centerfire or muzzleloading shotgun and compound or recurve bow with cutting-edge broadheads. You can use a rimfire or centerfire rifle or handgun, shotgun, muzzleloading rifles or shotguns, and compound or recurve bows, once again, with cutting edge broadheads during the fall season. There are a few catches, however. In certain WMU (Wildlife Management Units), you are only permitted to use shotguns and bows year round. And with shotguns...this might be nationwide but just to be safe....you must have a plug in a autoloading or pump action shotgun that limits the mag. to 2 shells hence only making your gun capable of 3 rounds. With shot size, no shot larger than No. 4 Lead, Bismuth-Tin, or Tungsten-Iron, and No. 2 steel. I hope this helps if you ever decide to hunt in Pennsylvania.