Logic? You're trying to read logic into the yearnings of a rifle loony? Good luck there!

I'm with you. I've got a Parker Hale 1200 on its way right now and have been mulling over the same question this guy has, so I understand the thinking... is a Mauser action considered a "standard" length action even though designed for intermediate length cartridges? When a guy has a 257 AI and a 7x57 in the works what the heck could he "need" a 6.5x57 (or 6.5x57 AI/260 AAR) for? If the gent who is selling me the actions says that the 6mm Rem cartridges he has fed through it (he burned out 2 barrels) have gone as slick as a hounds tooth, should I risk going to an '06-length cartridge, much less an '06 w/ an AI shoulder (like 6.5-280 AI)?

I sure wish I'd have had this site to help me when I built my 257 AI; it'd have saved me some serious loot. At least I'm asking myself all the questions before buying components... did a lot of Ebaying of brand new stuff w/ that build. Never again.

BTW- isn't a 6.5x64 Brenneke basically a 6.5-06?