A gunsmith in Dalton Ga is Ackley Improving the 257 Weatherby, necking it up to 6.5, and shooting the 120g bullets between 3650 and 700 fps.
Not slamming that gunsmith or anyone else who develops their own cartridge, hats off to them. I just wonder what you gain by that particular conversion? The 264 WM has a longer rim to shoulder length than the 257 Roy. What powder capacity advantage (if any) would you gain with an AI'd necked up 257 Roy?
I'm also glad to see the tone of this thread improve. I think mathman hit it. Guys may be running over SAAMI but they aren't claiming not to. Merely that is the load they run.
