any centerfire cartridge is legal in Pennsylvania
Just because it is legal doesn't make it adequate. Here in Alabama the law just says rifle or pistol shooting a centerfire expanding bullet. That means my Ruger LCP .380 pistol is a legal deer gun. But would I ever try to kill a deer with it? No! I do carry a pistol during gun deer season but it is a Ruger Blackhawk in .45 Colt. I once passed up a six foot shot at a doe with the Blackhawk because I had seen a nice buck just a few minutes before and was hoping to get a shot at it. (I would have shot the buck with my .30-06!)
(Luke 11:21 KJV) When a strong man armed keepeth his palace, his goods are in peace:
(Luke 22:36 KJV) Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one.