Does anyone have any experience with this round, or even with uppers from Oly Arms? I'm wanting to get this now instead of a 6.5 Grendel, the ammo and the upper for both are about the same price. They both shoot 120 grs, well the 25 is up to 120, the Grendel to about 144. But the 25 has 600 fps on the Grendel with a 120 gr bullet. The 25's BC is lower but I'm never going over 300 yards. The 6.8 is slower and I just don't like it over the 25.