I know more than one guy who gets 3000fps with the 140gr class of bullets from a 6.5x284. So, that will change your figures. [/quote]
And I know of more than on guy who gets 3000fps with a 150 out of the 270 so it doesn't change anything realistically. Are you under the impression that only the 6.5x 284 can be pushed hard?
In barrels of equal length pushed to saami specs the velocities of the 140 6.5 x 284 vs the 150 270 are to close to record a difference. Of course we can push either cartridge beyond that limit but to only push the 270 hard and leave the 6.5x284 at saami specs wouldn't seem like an apples to apples comparison.
Shod
