Birchwood Casey Gunstock Wax is good for an entire rifle. It does prevent rust. I have an old rag that I keep hung up that is some combination of one time silicone and now mostly Ballistol and a touch of Rem Oil. For PBs whatever preservative, oil or other material needs to be patched out of the bore and chamber before shooting. For an air rifle I cannot see how a little Ballistol would hurt anything.
Upvote 0