Doesn't seem to be a ton of data out there for 90gr VLDs other than they can be a PITA to get to shoot, so I figure I'll share what I saw today.
Criterion 22" 1:7 223AI barrel (Savage prefit), 0.061" freebore
90gr VLD @ 2.49" COAL
Nosler brass, fireformed
CCI-450
Varget powder
553' ASL
27F temp
30.36" Hg
24% humidity
ProChrono Digital @ 8' from muzzle, full sunlight.
3-shot average velocity
24.0gr: 2647
24.2gr: 2663
24.4gr: 2680
24.6gr: 2708
24.8gr: 2728
25.0gr: 2749
25.2gr: 2774
25.4gr: 2778 (faint ejector mark)
24.8 and 25.0gr had a common POI and 25.0gr bugholed, so I'll probably test 24.7-25.1gr to confirm the OCW.
Criterion 22" 1:7 223AI barrel (Savage prefit), 0.061" freebore
90gr VLD @ 2.49" COAL
Nosler brass, fireformed
CCI-450
Varget powder
553' ASL
27F temp
30.36" Hg
24% humidity
ProChrono Digital @ 8' from muzzle, full sunlight.
3-shot average velocity
24.0gr: 2647
24.2gr: 2663
24.4gr: 2680
24.6gr: 2708
24.8gr: 2728
25.0gr: 2749
25.2gr: 2774
25.4gr: 2778 (faint ejector mark)
24.8 and 25.0gr had a common POI and 25.0gr bugholed, so I'll probably test 24.7-25.1gr to confirm the OCW.