Lyman .223 case guage - Lyman Rifle Case Length Headspace Gauges

This case gauge works really well to help you determine head spacing for average reloading for target shooting. There are more accurate precision systems one could select for more competitive or precision shooting & setting the ogive to the landings. But for everyday plinking, this gauge is great. If it fits in the gauge, it should chamber in your rifle. Of course you still want to check all your other specs as well, case length, crimp, OAL, etc.