RE: 257 WSM vs. 264 WSM? .257-308 vs. 257-6mm?
First things the 250-3000 Savage IS a ligitimized 257-308 its like .1 " shorter I don't have my book in hand . It pre-dates the 308 by a couple decades . And just what did we do with the 25 WSM , same performance as the 25-06' 308 length ? It is in production . I forgot about the 257 roberts .