I need some guesstimation on GAP

[Aimsmall55]

Does anyone have a guess as to what the velocity of 45.5 grains of varget, 155 grain lapua scenar, rem. 9 1/2 lr primer, lapua brass, seated at 2.824 oal should be? The rifle is a GAP Crusader .308 with a 22" barell and 11.25 twist. Chrony is messed up and trying to get some guesstimations. Thanks
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[Gruff]

Re: I need some guesstimation on GAP

Somewhere around 2800 +/-. Watch your pressure as you may be over MAX.

 

[paulyosh]

Re: I need some guesstimation on GAP

My notes say:

45.5gr Varget
155gr Lapua Scenar
Virgin Lapua Brass
CCI BR2 Primer
2.810" COAL
10-shot average: 2809fps

This was out of my Crusader. I ultimately ended up going with 46.0gr at ~2836, as it shot tighter. Tested loads up to 47.5gr, which was very accurate, but showed pressure signs...