Howdy folks! I am new to this forum. A co-worker gave me 4000 once fired Federal Gold Medal hulls. I tried to shoot some in my 11-87 trap model. Most of them would not go into battery. As you may know the bases on these are a bit high and possibly in need of proper re-sizing. Might I consider honing the chamber a bit, and how would you go about this procedure? Thanks in advance. Skidsteer.