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The Hornady Lock-N-Load 25 Creedmoor Cartridge Gauge is one of those small bench tools that earns its keep the first time it catches a case that would have hung up in your chamber. It's a caliber-specific drop-in gauge machined to SAAMI minimum chamber dimensions, so when you seat a sized case or a finished round into it, you get a quick pass or fail on whether that cartridge will feed and chamber the way it should. No calipers, no math, just drop it in and read it.
The gauge has two reference steps machined into the end, giving you a minimum and maximum headspace window. Slide a case in and check whether the case head sits between those two surfaces. If it falls inside the window, your shoulder bump and case length are in spec. If it sits proud or sinks too deep, that's your cue to pull out the calipers and dial in your sizing die. It works the same way for loaded ammo, flagging a round that's oversized, swollen, or has a bullet seated out past spec before it ever gets near your rifle.
This one is cut from stainless steel, so it shrugs off the handling and oil that comes with life on a reloading bench and won't surface-rust on you over the years. Because it's machined to tight tolerances, it stays a reliable reference you can trust load after load. 25 Creedmoor is still a newer chambering, and brass prep matters on a cartridge this precise, so having a dedicated gauge on the bench takes the guesswork out of case checking.
Think of it as a go/no-go check, not a micrometer. It's ideal for sorting a batch of resized brass, spot-checking a new load before you commit to a full run, or troubleshooting a round that didn't chamber smoothly. Reloaders working up 25 Creedmoor loads, precision shooters chasing consistency, and anyone running volume on a press will find it a simple, repeatable way to keep bad cases off the range.
It checks whether a sized case or a loaded round falls within SAAMI chamber tolerances. You drop the case or cartridge into the gauge and compare the case head against the minimum and maximum steps. That tells you if your headspace, case length, and overall fit are good to go without needing to chamber it in your rifle.
No, these are two different tools. This Lock-N-Load Cartridge Gauge is a simple drop-in go/no-go style gauge for checking case and ammo fit. The O.A.L. Gauge is a separate product that requires a threaded modified case and is used to measure bullet seating depth to the rifling.
Not for a basic pass or fail check. The two machined steps give you a visual min and max reference, so you can sort brass by eye and feel in seconds. If a case fails or you want to fine-tune your sizing die, that's when calipers come in handy to measure exactly how far off you are.
Yes. Beyond checking resized brass, you can drop a finished round in to flag anything oversized, swollen, or with a bullet seated out past spec. It's a quick way to troubleshoot a cartridge that didn't chamber smoothly before you run a full batch.
| UPC | 090255807271 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 380727 |
| Caliber/Gauge | 25 CREEDMOOR |
| Capacity | 2 |
| Shipping Weight | 0.302 |
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