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F. Guffey · December 18, 2012, 02:12 PM

The M1917 receiver will have Eddystone stamped on the top of the front receiver ring. The P14 will have an oval with an E stamped inside the oval with a R and an A like ERA

The bolt face for the P14 will be flat, the M1917 will have a cone faced barrel.

F. Guffey

“The gunsmith doesn't have go or no-go gauges?”

“My first thought was .308 but other than taking it to a gunsmith I'm not sure how to tell for sure. Any ideas?”

Yes, I am sure the gunsmith has a head space gage, some have to order the gage when demand presents itself.

December 18, 2012, 02:12 PM	#5
F. Guffey Senior Member Join Date: July 18, 2008 Posts: 7,249	The M1917 receiver will have Eddystone stamped on the top of the front receiver ring. The P14 will have an oval with an E stamped inside the oval with a R and an A like ERA The bolt face for the P14 will be flat, the M1917 will have a cone faced barrel. F. Guffey “The gunsmith doesn't have go or no-go gauges?” “My first thought was .308 but other than taking it to a gunsmith I'm not sure how to tell for sure. Any ideas?” Yes, I am sure the gunsmith has a head space gage, some have to order the gage when demand presents itself.