This 6mm Creedmoor Lock-N-Load Cartridge Gauge (part number 380720) is Hornady‘s quick pass/fail check for confirming a 6mm Creedmoor case or loaded round meets SAAMI chamber dimensions. It works on both fired brass and finished ammunition, so it doubles as a sizing-die check and a final quality check on a batch of completed rounds before they go in a magazine.

Key Specifications

• 6mm Creedmoor-specific chamber gauge sized to this cartridge’s SAAMI chamber dimensions, not a universal fit.
• checks both fired brass and loaded ammunition so it works as a sizing-die check and a final QC step on finished rounds.
• drop-in, no-press design giving a pass/fail read by eye with no tools or setup required.
• catches over-length or over-sized rounds before the range helping avoid a stuck case or a failure to chamber in the field.
• silver-finished body for a durable, easy-to-read gauge that resists corrosion at the bench.
• ships at approximately 0.305 lb a compact gauge that adds minimal weight to a die box or range bag.

Frequently Asked Questions

Does this check loaded ammo, or only empty brass? Both. The gauge is built to check fired or resized brass as well as finished, loaded 6mm Creedmoor cartridges.

What does it mean if a round doesn’t seat flush in the gauge? It indicates the case or round is outside SAAMI chamber spec for 6mm Creedmoor and needs to be resized, trimmed, or set aside before it’s fired.

Buy the Hornady Lock-N-Load Cartridge Gauge, 6mm Creedmoor

Order this 6mm Creedmoor Cartridge Gauge from our Lubbock, TX gun shop with fast shipping to add a quick chamber check to your reloading bench. See our full reloading equipment lineup for more Lock-N-Load gear.