12ga barrels question

[Roberto S Siciliano]

So here's what I found out.
The wall thickness at the muzzle is 1.32mm [0.0519685"].
The left barrel gauges at full choke. The right barrel is in the 10ga range. Could this be factory... or was the right barrel re-bored. Is 0.0519685" muzzle thickness acceptable?
Photos are attached.
Comments appreciated.

Originally Posted by Dean Romig

Without a bore mic and a wall thickness gauge you’d only be guessing and buying it might prove more costly than “a good price.”





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[Roberto S Siciliano]

lft.jpg

Rt.jpg

gauge.jpg

[Dean Romig]

Originally Posted by Roberto S Siciliano

So here's what I found out.
The wall thickness at the muzzle is 1.32mm [0.0519685"].
The left barrel gauges at full choke. The right barrel is in the 10ga range. Could this be factory... or was the right barrel re-bored. Is 0.0519685" muzzle thickness acceptable?
Photos are attached.
Comments appreciated.

The wall thickness at the muzzle is not where you need to take measurements for safe shooting. Barrel wall thickness to determine minimum wall thickness must be taken along the entire lrngth and circumference of each tube. Thin spots can show up anywhere. Thin spots can also support a suspicion that barrels may have been honed.





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