RL-10x for 110 gr. VMax, and 90 gr. Sierra HP loads. I tried
RL-10x for some Barnes 95 gr. TTSX loads, but the velocity
was lower than I expected. I have some RL-7 loads done and
waiting for some time on the range. Also the disappointing
velocities were in a RRA 6.8 SPC upper. I have a new 6.8 SPC
upper built, with an AR Performance barrel(6.8 ARP chamber and
hybrid 5R rifling 11.25 twist), sitting on a Armalite NM lower.
I am hoping to get to 2800 fps with the 95 gr. Barnes.
I am not sure why you have an issue with 6.8forums, but they
have the best load data there is for the 6.8 SPC.
Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety.
Benjamin Franklin, Historical Review of Pennsylvania, 1759