Does M1917 index same on throat wear gauge? Getting 11+ TE

[45B20]

Mike
Army Ordnance specifies one throat erosion gage be used with the M1917 Rifle, 'Gage Breech Bore Taper Cal..30 C-3940'. That is the same throat erosion gage used for the M1903 Rifle series, (this is also the same gage used on the Browning Machineguns). There is/was a close copy of this gage being sold on eBay. Brownells and a few others also sell TE Gages that can be used.

45B20

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[mdoerner]

Mike
Army Ordnance specifies one throat erosion gage be used with the M1917 Rifle, 'Gage Breech Bore Taper Cal..30 C-3940'. That is the same throat erosion gage used for the M1903 Rifle series, (this is also the same gage used on the Browning Machineguns). There is/was a close copy of this gage being sold on eBay. Brownells and a few others also sell TE Gages that can be used.

45B20

Not the answer I was hoping. I have a Fulton Armory gage, and my Garands gage 2.0 and 2.05 TE repectively with it. The wierd thing is the rifling in this barrel is for the most part, SHARP. Unless the previous owner monkied around with a chamber reamer, I don't understand why my readings are so dang high.

So the Garand, Springfield, and M1917 will all....wait a minute. They can't gage the same.

The Garand's barrel/chamber are exposed while the Springfield and Enfields are offset because the reciever ring is offset from the chamber so the bolt lugs can engage. I'll have to see about getting to borrow someone's M1903 gage. Thanks for making me think this through.....

Mike Doerner

PS I'll post pics as soon as my $@#&ing wife can "find" the camera.