To achieve the highest degree of safety and accuracy, Lyman recommends that all bottleneck rifle cases be inspected after resizing to ensure that the proper headspace dimension is maintained. The best way to check this critical dimension is with a Lyman case length/headspace gauge. The reloader simply inserts the case into the gauge to insure that it does not exceed the maximum or fall below the minimum allowable headspace. In addition, the gauge will identify a case which exceeds the maximum allowable case length. Caution: Any case found with excessive headspace should be destroyed immediately.

Lyman maximum cartridge gauges check all critical dimensions of pistol ammunition to insure proper functioning. These precision made gauges allow the reloader to check the case length, diameter and overall cartridge length of pistol ammunition. This inspection is considered mandatory by top competitive shooters who demand 100% reliability for their competition ammo.

Rifle & Pistol: This improved version measures the case length of over 70 popular rifle and pistol cases. Many new cartridges are included like the Winchester Short Mags, 204 Ruger, 500 S&W and others.

Pistol & Revolver: Lyman's popular E-Zee Case Gauge in a smaller, more convenient size yet covering most pistol and revolver cases.

Modern Sporting Rifles: 223/5.56, 224 Valkyrie, 6.5 Grendel, 6.5 Creedmoor, 6.8 SPC, 300 Blackout, 308 Win/7.62, 7.62x39, 9mm, 450 Bushmas- ter, 458SOCOM, 50 Beowulf plus 2.260” max. cartridge OAL.

Cowboy Action: 32 H&R Mag, 32-20, 38 Long Colt, 38 Special, 38-40/44-40, 44 Russian, 44 Colt/45 Schofield, 44 Spec, 45 Colt. Black.

These Ammo Checkers are gauges that allow a reloader to quickly confirm that their ammunition will fit in their chamber. Machined from solid blocks of 6061 T6 aircraft grade aluminum and cut with custom tooling to SAAMI minimum chamber dimensions. Ammo Checkers are available in three designs covering most common handgun and rifle calibers. One gauge will work with a variety of calibers. Just drop your loaded rounds in the ammo checker, and if the round fits into the gauge, it will fit in the gun's chamber. Each caliber is clearly engraved on the gauge. Bright orange anodizing makes them easy to find on your reloading bench.

Handgun Gauge:     380 Auto, 9mm Luger, 38 Super, 40 S&W, 45 ACP, 38/357, 44 Mag/Spl, 45 Colt

Small Rifle Gauge: 204 Ruger, 22 Hornet, 223 Rem, 22-250, 300 AAC Blackout, 7.62 x 39

Large Rifle Gauge: 243 Win, 270 Win, 30-30 Win, 308 Win, 30-06, 300 WSM

MSR Gauges: 223/5.56, 6.5 Grendel, 6.8 Rem. SPC, 7.62x39, 300AAC Blackout, 450 Bushmaster, 458 SOCOM and 50 Beowulf (anodized black)

Accurate measurement at an affordable price

This precision tool will deliver unfailing .001" accuracy long after the best reloading dies have worn out. Comes with storage case.

Stainless Steel Caliper with an easy to read digital display

Digital caliper features high tech stainless design with direct digital readout. Switch back and forth from inches to millimeters with the touch of a button. All new hold setting plus on/off switch. Accurate to .001"/0.1mm. Comes with handy storage case.