MBWT Data Comparisons (Damascus and Fluid)

[Dean Romig]

Originally Posted by Dean Weber

Someone asked via PM my process for MBWT. MBWT = the minimum reading I get anywhere on the barrel. I take many measurements with the gauge and record the thinnest reading at any point. Further, nearly all my MBWT readings occur near a rib. This is also true for the 9" from muzzle reading.

That's not at all surprising given that the final/finish striking of the barrels was done after the ribs were laid.
This set of Grade-6 Damascus barrels not only are chamfered at the muzzles but you can easily see that the tubes are considerably thicker between the barrels and under the ribs and the striker, while maintaining the 'concentric' contour, must keep them thin while not going too thin.


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[Randy Roberts]

Very interesting Dean. Concerning the steep angle of the forcing cones you mentioned what length are you generally seeing on the cones? I assume the ones with the steep angles would be shorter possibly ?

On a side note of all the Parkers that I have measured that were original I have been extremely impressed with the craftsmanship in them and how concentric they were. The one exception would be a truly mint Remington era 16 gauge that has measurements all over the place. It makes me wonder if it was a Friday gun.