Short story, I raise my nephews and the 16 year old says he'd like to get into deer hunting. So I'm thinking of buying him a shotgun, since the part of the state we live in we can't use a high-powered rifle. But we can use a pistol/straight walked cartridge 35 cal minimum and no longer than 1.8" I believe and shotgun and muzzloader.

So my thinking is getting one of the shotguns that come in a combo set(2) barrels. Figured he'd get more use out of it, but I'm not sure of the quality of them nowadays, or just get a slug gun.

should I just try and find a rifle that shoots a that's legal for the area.
I'm really having a hard time figuring this out, I have time since he won't go hunting till next season. But id like to figure out what I'm gonna do and start looking for it. Then have him start shooting to perfect good shooting technique and have him know his weapon and how it v shoes in all conditions.

Any and all tips would be appreciated.