RCBS MatchMaster Duo 22 Creedmoor Die Set

RCBS pairs two dies in the MatchMaster Duo set for 22 Creedmoor: the MatchMaster seating die, which uses a micrometer adjustment for repeatable seating depth, and an RCBS full length sizing die. One works the case, the other sets where the bullet sits.

22 Creedmoor is a newer cartridge, and die availability is usually the first thing that decides whether a handloader can work with it at all. Micrometer seating is the part most loaders notice at the bench, since a number on the thimble means a seating depth you can come back to after a barrel change or a new lot of bullets. Set it once, write it down, and the next session starts where the last one left off.