OK for starters, I am unfamilier with this cartrige, and have a couple of questions. I know for a fact it is the winchester and not the norma. So I can't use the norma or lupa brass, correct? I will have to get Winchester 284 brass, and neck down right? Do I need special die's? Have never messed with any wildcat cartriges. I just got the gun off my grandpa. It was a 6.5 JAP I think? He rechambered it a long time ago, I think shortly after the 284 came out. he use to do alot of wildcat's in his day. But unfortunatly his memory isn't what it use to, but he still passes on some very use full info.