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Nobody wants a jam in the middle of a string, and a bad round is the easiest thing in the world to catch before you ever load it. The EGW .223 Remington 7-Hole Cartridge Checker gives you seven gauge holes in one block, so you can drop in a handful of rounds, confirm they're within spec, and move on. It's one of those tools that pays for itself the first time it flags a case that would've tied up your rifle at the worst possible moment.
EGW machines these from solid 6061 T6 aircraft-grade aluminum and finishes them in a matte black anodize that shrugs off bench abuse and handling. What sets them apart is the cutting: instead of using boring bars, EGW uses the actual Clymer reamers that chamber real barrels, and the gauge is held to SAAMI minimum spec. That means it's checking your ammo a little tighter than most factory chambers, so anything that passes here is going to run.
The process couldn't be simpler. Drop a loaded round into one of the holes. If it sits flush or below the surface, you're good. Flip the gauge over and a properly sized round should fall out under its own weight. Anything that sticks proud or hangs up gets set aside for a second look. The gauge reads minimum case diameter and maximum overall length, so it catches both oversized brass and rounds seated too long in a single drop.
Worth knowing: the difference between a .223 and a 5.56 gauge is throat length, with the 5.56 cut having a longer throat while bullet seating depth stays the same. This is the .223 Remington version, so match it to how you're loading. Compact enough to toss in a range bag yet solid enough to live on your reloading bench, it's a staple tool for anyone running .223 brass through a press and wanting to trust every round they load.
Drop your loaded or resized round into one of the seven holes. If it sits flush with or below the top of the gauge, it's within spec. Flip the gauge over and a correctly sized round will fall out under its own weight, while anything that hangs up or sticks proud should be set aside and inspected.
The 5.56 gauge is cut with a longer throat than the .223 version, while the bullet seats to the same depth in both. Since this gauge is cut to SAAMI minimum .223 Remington spec, it reads a touch tighter, so match it to how you're loading your ammo for the most accurate results.
Single-hole gauges work fine but get slow when you're verifying a batch of reloads. The 7-hole design lets you move through a tray of ammo quickly, which is a big help when you're processing .223 brass in volume and want consistency without the tedium.
It's machined from solid 6061 T6 aircraft-grade aluminum and finished in a durable matte black anodize. EGW cuts the gauge using genuine Clymer reamers, the same tooling used to chamber actual barrels, so it measures your ammo against a true chamber profile.
| UPC | 841370107711 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 70150 |
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