Garand Throat Erosion and Muzzle Wear Gauges by Stone Ax

[Dark Star]

I just bought one and it works. $52 delivered and its results mostly duplicate (but, in some cases, invalidate) the measurements on my CMP Garands' blue armorer's tags.

[Dark Star]

[Orlando]

you will find that it does not always match what the CMP tag states. Many times the CMP tag will read wear is worse than it actually is

[Dark Star]

you will find that it does not always match what the CMP tag states. Many times the CMP tag will read wear is worse than it actually is

That's what I found, also. About one out of every five CMP blue tags that I checked is incorrect, on one or both of the bore measurements, both over and under. Most of the time (80%) my gauge confirms the CMP figure exactly, so it's not my gauge that's off.