Hornady C1550 Lock-N-Load O.A.L. Gauge Red Multi Caliber Rifle Firearm 0.22 lbs Curved Bore Sighters and Arbors 2520 also performs extremely well

2520 also performs extremely well in 223 Remington with heavy match bullets (62 to 80 grain)

Perfect for mobile troops who travel light

rear sights

spherical rifle propellant designed around the 308 Winchester

while the digital

Hornady C1550 Lock-N-Load O.A.L. Gauge Red Multi Caliber Rifle Firearm 0.22 lbs Curved Bore Sighters and Arbors 2520 also performs extremely wellThe Lock N Load O. A. L. Gauge is an easy to use and reliable method of regulating seating depth and the resulting "jump" to the rifling. This curved OAL gauge works for all autoloader, lever or pump action rifles; all bolt action and single shot firearms. It is not compatible with Adapter "D" or short bodied cases. NOTE: To use the Lock N Load OAL straight gauge, you will need a modified case to fit your firearm's chamber (not included).