If you do not register, and you do not act like an ass hole, you should have no problems. "They" can't search for and seize that which they cannot document. A legal search warrant must be issued by a judge upon the statement of a witness [not a phone call from a beat cop or politician], citing the premises to be searched and the items to be seized. See the US Constitution, which most politicians obviously have not bothered to check. Buy enough ammunition and a reloading tool and accessories before the government adds them to their shopping list. Old wheel weights make good bullets in a bolt action rifle or revolver. In semi-automatics not so good.
Now I suppose some Gov hack will add wheel weights to the registration "wish list".