Hit the range today for a OCW/Powder charge test and thought I'd offer my data to this great thread (***do not use in your own rifle, please work up to a safe load on your own***) :
N560
22" Barrel, seasoned Proof carbon, maybe 200 through it. All factory ELDX mostly.
-0.020 jump, comparator length was 2.248
Lapua SRP brass
CCI 450M
Griffin Explorr Suppressor
Only loaded up to 45.5 grains and did not see any pressure signs.
Velocity was 2674 average at 45.5.
Powder in steps of 0.5 started at 42.
Had a great limited vertical POI shift from 44.5 to 45.5, and 45 had a 10 ES and sub 5.8 SD, so going to continue with a seating depth test next at 45 grains.
I might also test some more at 46 to 46.5, just to see if there is a higher node.
Pretty happy with a 2620 starting velocity though out of a 22" pipe and good ES/SD.