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Question on 2cm case
- Thread starter MINENAZ16
- Start date
Tony Williams
Well-Known Member
It's called a "belt" and is there to ensure headspace - i.e., to locate the cartridge precisely in the chamber. So it does the same job as a rim, but a bit more magazine-friendly. Usually found on cartridges which are straight or tapered, so they can't easily headspace on a shoulder.