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Common Bore Markings on Krieghoff Shotgun Barrels

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Here is some information that could be useful to Krieghoff owners. These are common markings on Krieghoff shotgun barrels...

K-80 Bore Marking

mm

  1. 18.6mm  : 0.732"
  2. 18.7mm  : 0.736"
  3. 18.8mm  : 0.738"

Barrels marked with 12 / 70 mean 2 3/4" chambers (trap usually) 

Barrels markedwith 12 / 76 mean 3" chambers

The common bore diameters are...

12ga- .732-733"

20ga- .619"

28ga- .543"

.410ga- .401"

Best,

Will

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