Originally Posted by
Nimrodder
I thought he did Nimrodder.
Ive shot the PR QT 40-250gr with good "hunting" quality groups at 1950fps. Any faster and the groups went to hell fast in both my "normal" twist 45s. Even with a Harvester sabots i couldn't get them any faster (accurately) but IMO that is fast enough. It only took about 100gr of BH209 to achieve that speed also. I got similar results with my resized .401 hardcast 260gr RNFPs in both sabots. Those actually shot best at .406 and a 45x40 crushrib IMO.
IMO a faster twist should work great with that bullet at that velocity. Its a near match for the older 40/6X cartridge velocities.