I can easily get an extra 150-200 fps faster than the standard 260,
Horse poop.
2995 with a moly 140 Berger & RE19...
fast enough for me in a 308 case........Pac Nor 8 twist/3 groove/27"
Again, if i run the same insane pressures you are running I'll get 200 fps faster out of a 284 case.