Thread: New Brass. Prep before first use or after ?

Hi thanks guys for so many quick replies.

This is what i think i'll do:

Chamfer all cases inside and out of neck in case any burrs.

Check half a dozen for cases length and headspace ( at shoulder) to make sure the within saami spec and not horribly variable or different from old fired cases from this gun.

Check current powder charge is towards the lower end of ADI boook range.

Load up the 100 new brass and use them. Should last this summer plus.

After fired once and formed to this chamber then trim to length rechamfer deburr and cut primer pockets.