Holy resurrection Batman!
.264 plus .013 equals .277. I don't think a critter in the world can tell the difference.
It's the 264 hands down for far better bullets, and brass all over the place. No it does not have to say 264 on the headstamp. It works just as well if it left the factory with a .284 neck.
Mine runs the 130 AB at 3300 fps with magnum and a CCI 250.
