The local store has 400 round cans of 7.62x54 for $100, but it's corrosive. Does anyone use corrosive ammo on a regular basis? What is required to clean it to neutralize the corrosive components, and how soon after shooting do you have to clean the gun to avoid any ill effect? For instance would I be ok shooting this ammo then cleaning the gun an hour or two later? It's a good deal for the ammo I just dont want to mess up my gun.