The .30-30 is plenty of gun for black bear in PA. I use a Marlin 336C in .30-30 with a Bushnell Banner 4X shotgun scope and Hornady 160 gr. LeverEvolution ammo. This rig shoots 1" groups at 100 yards. Good luck!
Winchester M70 XTR Featherweight .30-06
Marlin 336CS .30-30
Beretta A300 Outlander 12 ga.
Mossberg International Silver Reserve II 12 ga.