- Go/No-Go drop-in gauge for 6mm Creedmoor (part no. 380720) — checks sized cases and loaded rounds
- Checks shoulder headspace to confirm the case shoulder is set to SAAMI specification
- Flags cases that have stretched beyond maximum case length and require trimming
- Identifies body diameter bulges near the web that could cause chambering failures
- Cylindrical precision steel construction machined to SAAMI tolerances for 6mm Creedmoor
- Simple drop-in check — case head flush or recessed indicates a correct fit
- Calibre-specific design; one gauge per cartridge for reliable, repeatable results
The Hornady Lock-N-Load Cartridge Gauge for 6mm Creedmoor (part number 380720) is a calibre-specific drop-in cylinder tool for reloaders who want to confirm their sized cases and loaded rounds will chamber correctly. It inspects three critical dimensions in a single check: shoulder headspace verifies the sizing die has pushed the case shoulder back to SAAMI specification; maximum case length identifies brass that has stretched beyond its safe limit and requires trimming; and body diameter inspection flags any bulging near the web area that would prevent clean chambering. The 6mm Creedmoor is a flat-shooting, low-recoil cartridge favoured by long-range target shooters and, increasingly, by roe deer stalkers looking for accuracy at extended distances. Drop the case into the gauge — if the case head sits flush or recessed, the round is within SAAMI tolerances. A fast, reliable bench check that pays for itself the first time it catches an out-of-spec case.
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