|
I would just load and shoot. I certainly would never full-length resize new brass, unless for some weird reason it just won't go in your chamber. (?) New brass is uniform, so the there oughta be uniform pressure from shot to shot.
Just guessing, I'd think that there's maybe a grain-weight of powder difference between new and once-fired in your chamber.
I never noticed any difference in a .220 Swift in accuracy between new brass and once fired. I haven't loaded all that much in .22-250, but it seems to me they'd be comparable.
I'd neck-size only after the first shot, maybe 3/4 of the length of the case neck. Measure occasionally, to check overall length of the case. The .22-250 doesn't "grow" as much as cases with less taper in the shoulder.
$0.02,
Art
|