Continuing with my year of shooting only factory ammo in the Mesa 6.5 CM I tested a box of Norma 156 gr. Oryx. The nominal MV printed on the box was 2560 fps. I don't know if that's based on a 22, 24, or 26 inch barrel. Given where the groups landed on target I suspect a 24" test barrel.
I sorted the ammo by B-t-O seating depth and shot 5-round groups @ 100 yards. The deeper seated groups shot better than the longest seated groups. B-t-O seating depth variance for the box was 0.006"
Groups were 0.73", 0.86", 0.97" and 1.17".
Given those numbers I bought 1 more box from the same lot # to squirrel away for if and when I ever draw a lower-48 moose tag.
Pud
Last edited by Puddle; 11/18/20.
