05-01-2017, 03:14 PM
It would be interesting to see what kind of BC could be achieved with 6.5/.264 100, 107, 110 and 113 grain EPR. A compact bullpup with 16-18 inch barrel in 6.5 Grendel with 107 grain EPR at 2650 FPS might prove very effective. A 14 1/2" M-4 with a 100 grain EPR 6.5 MM at 2550 FPS would be intersting to test. Anyone have any idea what velocity threshold the EPR would require to fragment?

