Which sort of begs the question to the astute reader--why is that? Probably a combination of things, the traditional role of the .257 bullet was generally limited to lighter weight bullets in slower twist barrels, but recently folks like Miles Johnson at Blackjack and Brian Litz at Berger have pushed the boundaries of the .257 projectile and discovered that it can be made into a very high BC that flies with remarkable efficiency. But it comes at a cost, they need to be driven quite fast in a faster twist barrel. The 257 Weatherby, along with the 25-06 right behind it, was the main SAAMI-speced cartridge that was "out there" pushing the .257 at extreme velocities, but at the time the very high BC and heavier projectiles did not exist, and twist rates are not up to the task of stabilizing the newer projectiles. There's also the overbore issue when taking a big volume case and necking it down to push small diameter bullets--there's no free lunch, as they say--so these newer 25 cartridges are probably going to appeal to a "select audience" (or curious nut cases like me). Miles in particular seems determined to find the ultimate balanced high performance 25 cartridge--so maybe one of his cats will eventually be mainstreamed into SAAMI-speced stardom.25 PRC is a wildcat.
Same with 25 WSM, 25 SAUM, 25-284, 25-350 Rem Mag, 257 Roberts AI, 25 Souper, 250 Savage AI, and a host of others.
6.5 x 0.03937” = .2559” technically yes, its darn close to quarter bore. Even a thousandth under it. But for some reason, gunmakers (and toolmakers for that matter) are odd ducks.Okay, really ignorant question: isn’t 6.5 mm already .25? How is the .25 prc different from the 6.5 prc?
The 25 creed has been around for a while--and is a good one. If you go to Blackjack's website you can find all the "usual suspects" that he is using to find the optimum 25 high BC rifle. He mentions his current favorite is the 25-284, which, like the creedmoor, would not only be an easy neck down--but equally easy to find brass and dies for--unlike the PRC.did I mention to you about 25 Creedmore to you at all?? Read about it in a magazine, it is a fat, stubby cartridge with a .257 long for caliber bullet.
No worries--that really confirms the common sense of choosing the creedmoor or 6.5-284 as a base case for the new hiper 25's based on brass availability.also showing it in bulk of 500. Sorry forgot your's is a prc. My bad.
In a true short action, the creedmoor is going to have a small edge over the 308 win, which is why I'd do the opposite of you.For the same reason i'd go with 260 Rem over the 6.5 Creedmoor.
A cartridge designed to be shot across multiple non single feed platforms near or under an OAL of 2.81. Yes., it's a moving target, but it's pretty common knowledge that the creedmoor does a better job of accommodating higher BC bullets by knocking the shoulder back as compared to the 308, case in point the .260 rem vs 6.5 creedmoor (I load and shoot both).Your gonna have to define "true short action"!