I have a lot of once-fired brass.. Most of it is Lake City of various years, but also a lot of some SBS, PMJ (NATO cross), and some random others I've never seen.. I'm wondering that since NATO mil-spec all has to meet the same specs, will these various headstamps have pretty close to the same volume? What about the LC of various years compared across the year lots... I havent weighed them, or capacity tested them yet, this is more of a curiosity question.. Ideally, I'd like to make one big lot of ammo for reloading, instead of 12 odd sized lots, and 12 load workups for each bullet, ect..