Lyman Multi-Caliber Handgun Ammo Checker Cartridge Gauge for 380 ACP, 9mm Luger, 38 Super, 40 S&W, 45 ACP, 38 Special/357 Magnum, 44 Special/44 Remington Magnum, 45 Colt

The Lyman Multi-Caliber Handgun Ammo Checker is a go/no-go cartridge gauge built for reloaders and shooters who demand reliable ammunition. Whether you're running a progressive press, single-stage setup, or just quality-checking factory rounds, this gauge catches the problems that cause malfunctions before they happen in your gun. Eight of the most common handgun calibers—.380 ACP, 9mm Luger, .38 Super, .40 S&W, .45 ACP, .38 Special/.357 Magnum, .44 Special/.44 Remington Magnum, and .45 Colt—are cut into a single block to SAAMI minimum chamber dimensions. No more guessing whether a loaded round will chamber or cause a feed stoppage.

Built from solid 6061 T6 aircraft-grade aluminum, this gauge is machined to tight tolerances and built to live on your bench for years. The bright orange anodizing keeps it visible among your other reloading gear, and each caliber is clearly engraved so there's never any confusion. It's dead simple to use: drop a round into the appropriate chamber. If it seats fully, it will feed and chamber in your firearm. If it doesn't, you've caught a dimension problem before it matters.

This is one of those tools that pays for itself the first time it stops you from loading a batch of ammo that would have caused problems downrange. For handgun reloaders and competitive shooters especially, case and bullet consistency is non-negotiable, and the Lyman Ammo Checker is the fastest way to confirm it.

Key Features

• Eight handgun calibers in one gauge—no need to buy separate tools for each round
• Machined to SAAMI minimum chamber specifications for accurate go/no-go testing
• Aircraft-grade 6061 T6 aluminum construction for durability and precision
• Bright orange anodizing for high visibility on the reloading bench
• Clear caliber markings engraved on each chamber
• Fast, repeatable quality control for reloaded and factory ammunition

Specifications

Frequently Asked Questions

What calibers does this Lyman Ammo Checker cover?

This handgun gauge covers eight popular calibers: .380 ACP, 9mm Luger, .38 Super, .40 S&W, .45 ACP, .38 Special/.357 Magnum, .44 Special/.44 Remington Magnum, and .45 Colt. All eight are cut into a single aluminum block, so you only need one tool for all these rounds.

How do I use the Ammo Checker to test my reloads?

Simply drop a loaded round into the chamber corresponding to its caliber. If the round fits fully into the gauge without binding or stopping, it will chamber in your firearm. If it doesn't seat completely, the round has a dimension issue—either the case is too long, the bullet is too large, or there's another problem that needs correction.

Is this gauge accurate to SAAMI specifications?

Yes. The Lyman Ammo Checker is machined from solid aluminum using custom tooling cut to SAAMI minimum chamber dimensions, making it a reliable go/no-go standard for your reloading quality control.

Can I use this to check factory ammunition as well as my reloads?

Yes. The gauge works on any ammunition—reloaded or factory—in the eight calibers it covers. It's a fast way to verify that any round will function reliably in your gun before you load it or fire it.