I have used up all my M1 Garand ammo and none could be found so I figure it is time to start reloading and have purchased a RCBS Rebel single stage press. Thankfully I have saved my brass over the years and have tons of it. I also have a couple Jap Type 99's and plan to shoot them which leads to my first question. I ordered brand new PPU 7.7x58 brass, what would you do to prep new, never fired brass?