Todays runs over the chrony with H322.
6x6.8 Savage bolt build, 22" BHW bbl.
2.280"col, cci 250, R-P brass, 55g varmageddon
Tested with a Magnospeed V3 chrony & suppressed.
All at 100 yards. 7 oclock breeze at 11-17 mph, 49* & sunny.
Not a single sign of pressure.
31.5g H322 fills up to just inside the neck on the R-P brass.
I could do 32g easy & after that with the 55g it would start to be a compressed load.
H322 powder:
28.5g = 3288 fps
29.g = 3362fps
29.5g = 3415 fps
30.g = 3496 fps
30.5g = 3502 fps
The above went into a .405" group
31.g = 3576 fps....2 round average
31.5g = 3609 fps...3 round average
The above 5 shots went into a .506" group
87g vmax
29g Varget, 2.280" col
cci 250, R-P brass
2861 fps average of 5 rounds, .588" @ 100 yards.