Headspace Gauge Question

[silverstatesw]

From an estate i acquired- a set of 3 headspace gauges for 30/06(go,no-go, field) but they are RIMMED along with a "RR" stamp on the gauges themselves.
What do i have?
Thanks all...
Larry in Reno

 

[ricco1949]

Not rimmed....that's the extractor groove?

If it's bigger below the groove I don't have a clue.

 

[DShortt]

As mentioned above, that's just the extractor groove.

If you're REALLY concerned about it, use a comparator and check it against another set of gauges. I'd bet a shiny piece of copper they'll be the same.

 

[Bill Rodolph]

Measure the diameter of the rim. I bet its righta around .470. If so, just the way the gauge is made.

 

[silverstatesw]

.470 it is thanks guys!!!