Preview: Hornady Lock-N-Load 17-22 Rim Thickness Gauge

by
posted on January 2, 2023
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Rim Thickness Gauge

Inconsistencies in rimfire ammunition brass are quite apparent, which is why competition and target shooters, dedicated varmint hunters and enthusiasts turn to a nuanced process to gain an extra edge in performance—batch-sorting rimfire ammunition.

This process is made easier with a simple accessory for dial calipers from Hornady. The 17-22 Rim Thickness Gauge eases sorting of .17 Mach 2, .22 Short, .22 Long and .22 Long Rifle rim thicknesses. With the additional supplied bushing, the unit can be converted to measure .17 HMR and .22 WMR ammo.

A safety lanyard is included to prevent accidental dropping of loaded ammunition. MSRP is $49. For more information, please visit hornady.com.

Latest

FN 309 01
FN 309 01

New For 2026: FN 309 MRD

For 2026, FN is seeking to bring its handguns to a wider market with the FN 309 MRD, a no-frills affordable pistol that the company says is “easy to shoot, easy to use and easy to own.”

Handloads: A Cheap .38 Special Target Load

These times of sparsely available handloading components require scrimping here and there in order to continue shooting, and the .38 Special provides a lot of bang for the buck.

Jack O'Connor Guns, Books & Art Up For Auction

A number of books and firearms, along with some art pieces, that have a direct connection to famed outdoor writer Jack O'Connor are up for auction at GunBroker.

Building Christensen Rifles: A Hands-On View

A cutting-edge enterprise takes on the lightweight-hunting-rifle market with models that defy expectations—all without flinching.

New For 2026: 25 WBY RPM

The 25 WBY RPM is the 17th proprietary cartridge developed by Weatherby, a company whose name is synonymous with magnum cartridges and bullet speed.

The Armed Citizen® Jan. 12, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Interests



Get the best of American Rifleman delivered to your inbox.