
Availability: In Stock
Current Stock: Out of stock
The Hornady Cartridge Gauge .355" .380 Auto is a dedicated case and ammo checker designed for reloaders who work with .380 Auto (also known as .380 ACP). Whether you're validating fired brass, inspecting finished ammunition, or verifying that your handloads will chamber safely in SAAMI-spec firearms, this gauge gives you a quick, reliable way to catch sizing or assembly problems before they reach the range or defensive carry rotation. It's the kind of simple quality-control tool that separates careful reloaders from rushed ones.
The .380 Auto remains popular among shooters who appreciate its compact-pistol platform and manageable recoil, and if you're serious about reloading for it, you need to know your ammunition will actually fit your firearm. This Hornady gauge handles that verification—it's not fancy, but it's accurate and straightforward. Part of Hornady's Lock-N-Load system, it integrates with the broader ecosystem of their reloading tools if you're already invested in that lineup.
Reloaders who move between multiple firearms or calibers will appreciate having a dedicated gauge for .380 Auto that matches your chamber specs exactly. It's a small investment that eliminates guesswork and potential chambering issues, giving you confidence in every round you load.
| Caliber | .355" (.380 Auto / .380 ACP) |
| Application | Case and ammunition gauging |
| Function | SAAMI chamber specification verification |
| Brand | Hornady |
The Hornady Cartridge Gauge .355" .380 Auto lets you verify that your fired cases and finished handloads will fit safely into a SAAMI-spec .380 Auto chamber. It's a go/no-go check for proper sizing and assembly.
Yes. While it's primarily designed for reloaders checking their own work, it will verify that any .380 Auto ammunition meets SAAMI dimensions.
This gauge is part of Hornady's Lock-N-Load system, so it integrates with other compatible Hornady reloading tools and components if you're already using that product line.
Yes. .380 Auto and .380 ACP refer to the same cartridge. This .355" gauge is the correct choice for that caliber.

SKU: 197555961 • Weight: 0.15oz





Availability: In Stock
Current Stock: Out of stock
The Hornady Cartridge Gauge .355" .380 Auto is a dedicated case and ammo checker designed for reloaders who work with .380 Auto (also known as .380 ACP). Whether you're validating fired brass, inspecting finished ammunition, or verifying that your handloads will chamber safely in SAAMI-spec firearms, this gauge gives you a quick, reliable way to catch sizing or assembly problems before they reach the range or defensive carry rotation. It's the kind of simple quality-control tool that separates careful reloaders from rushed ones.
The .380 Auto remains popular among shooters who appreciate its compact-pistol platform and manageable recoil, and if you're serious about reloading for it, you need to know your ammunition will actually fit your firearm. This Hornady gauge handles that verification—it's not fancy, but it's accurate and straightforward. Part of Hornady's Lock-N-Load system, it integrates with the broader ecosystem of their reloading tools if you're already invested in that lineup.
Reloaders who move between multiple firearms or calibers will appreciate having a dedicated gauge for .380 Auto that matches your chamber specs exactly. It's a small investment that eliminates guesswork and potential chambering issues, giving you confidence in every round you load.
| Caliber | .355" (.380 Auto / .380 ACP) |
| Application | Case and ammunition gauging |
| Function | SAAMI chamber specification verification |
| Brand | Hornady |
The Hornady Cartridge Gauge .355" .380 Auto lets you verify that your fired cases and finished handloads will fit safely into a SAAMI-spec .380 Auto chamber. It's a go/no-go check for proper sizing and assembly.
Yes. While it's primarily designed for reloaders checking their own work, it will verify that any .380 Auto ammunition meets SAAMI dimensions.
This gauge is part of Hornady's Lock-N-Load system, so it integrates with other compatible Hornady reloading tools and components if you're already using that product line.
Yes. .380 Auto and .380 ACP refer to the same cartridge. This .355" gauge is the correct choice for that caliber.
SKU: 197555961 • Weight: 0.15oz
