05-30-2015, 06:12 PM
With the tight twist of most 6.5 Grendel barrels, transonic isn't an issue. My 16" has a 1/7.5" twist, and factory Hornady A-MAX averages 2460fps. I can get 2550fps and still be just at 50,000psi with CFE.
NRA Basic, Pistol, Rifle, Shotgun, RSO
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com
CCW, CQM, DM, Long Range Rifle Instructor
6.5 Grendel Reloading Handbooks & chamber brushes can be found here:
www.AR15buildbox.com