Thread: Hornady 139SST

I would leave your existing load alone,and simply exchange projectile....the 1 grn of projectile weight is nothing in grand scheme of things,you could fine that variation in batch anyway..... by leaving seating die set same way,the oglive bit SHOULD be similar jump to lands,and its a proven load so you will have confidence in it...wont worry its too hot etc.
in these times of component shortages,the less we need to poke into paper the better.