Dumb new Lapua brass question

[StoneHendge]

Iduno, for 1st firing I care a lot less as i was not in control of the sizing process. Sd and es are basically never as good as after firing and resizing. Once fired from the intended chamber, then the attention to detail becomes hypercritical. I would rather have my case capacity established for my chamber than by factory dies and work from there. new brass I always just use as plinkers or sighters. Anything I care to establish reference groups, or compete with will be fired brass from that gun.

I've shot PRS matches with virgin Alpha brass and had no difference in velocity variation between the virgin and subsequent loads after tweaking. Lapua or Peterson will be next because I don't think the Alpha primer pockets will last as long as advertised, and I won't hesitate to do it again with either one of those.