Lyman, Case Length/Headspace Gauge, .224 Valkyrie

Does as it's advertised purpose describes. Put the caliper away for checking head space.

Works real good, lasts a long time. A Necessary part of reloading gear.

I had been using calipers for years. Shoulder seating inconsistency can appear to make the case appear too long. Especially with other brands. Not with good old Lyman. Don't scrimp get onea these.