Only on new brass. Mis-shapen necks screw up the Aztec measurement. So I just size the new stuff then anneal it. you're not really sizing new Peterson brass, you're just uniforming the necks.
Fired brass goes to the annealer first then sized, trimmed, deburred, primed, Necks get brushed and moly'ed, charges weighed, bullets seated, Match ammo gets loaded no more than the week before a match.
Fired brass goes to the annealer first then sized, trimmed, deburred, primed, Necks get brushed and moly'ed, charges weighed, bullets seated, Match ammo gets loaded no more than the week before a match.

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