I have 3 30-06's 1 is a 760. All 3 have just enough differnce in the shoulderaera to make the brass all but unswapable. The bases are fine in all 3 but 1 has a shoulder/body junction that is nearly .450 and another that is long from the base to the shoulder/body corner by .01. The full length dies that I have will bump the large and long shoulders but usually not enough to get no load fit in my 760 so each rifle gets its own brass. I use the head stamp method ,LC for the 03 ,TW for the Savage and Rem/Fed in the 760 for now.