Headspace gauges. .300 BO, 5.56, 9 mm

[JeffreyDeGraff]

I think the OP may be talking about chamber gauges, that you slide your loaded cartridges into, to make sure they are in spec.


JTD

[Mbaker78]

I think the OP may be talking about chamber gauges, that you slide your loaded cartridges into, to make sure they are in spec.


JTD

I wondered the same thing.