I know this has probably been asked here before but I'm gonna ask for some expert advice on this for my own good! I've been reloading 7.62x51mmNato cases in my 308win Savage bolt gun, most of my data I've been using has come from a book from Stephen Radgwell, titled Reloading 7.62x51mm Military Brass: in this book is info on how to safely reload 7.62nato to be used any bolt action rifle, but he starts off using fire formed cases to develope his data, so my question is without going back thru the whole process of load development again due to the limited resoures in todays world can somebody help me here? Let's say I have a max load of 40.5gn's of Varget using a 175gn Sierra Matchking from my 24'' 1&10 twist barrel, using a fire formed and neck sized only case, I'm happy with the #'s from my chrony and I have no pressure signs to worry about and all is good! now say I have 400 full length small base sized cases I want to reload, Where do you think I should start my powder charge @ to try and safely keep my same velocity's and pressures at? any ideaslightbulb I'm wanting to load up some ammo for storage, thanks guy's!