Whoever said "shoot from a tree stand" first has the right idea. Or at least in some way as to put dirt behind your shot. that will be good for your peace of mind as well as for your relationship with your neighbors. You might clear a couple of safe shooting lanes on your property.
I'm surprised at a maximum distance of 60 yd that no one has yet recommended a handgun.
Your .30-30 is all you need. Or your 12 gauge slug gun, But I would certainly pattern it at distance to see how accurate it/you are first.
If you're wanting to buy a new gun that rifled Savage 220 in 20ga is pretty hard to beat. I have a 2-7x variable on mine and it is very surprisingly accurate.
