Most of the used ones I've seen have the insert extractor that matches the 16 ga shell rim so no machining is necessary. All mine work that way. I have them in all my drillings. alsways hate to cut on a drilling; especially when it's not really necessary.

quote:

Originally posted by Vol717:
Actually, when I took the insert out I could see that the notch goes all the way through the drilling extractor. The roll pin is a snug fit in the square notch.

This is the way the Krieghoff factory does them, and the way i prefer mine to be. I can put mine in without even looking at it, as the precision cut in the extractor "indexes" it perfectly.

DM

I, too, keep the rolled pin and use a snug fit. It just drops in right on the money every time that way. I now would need to stop and put on glasses to see the index marks if they didn't have the pin and notch.

So far, I find no advantages to getting old...

My 12 gauge insert fits my Sauer 3000's rim rebate so I will not need the recess milled in the face of the extractor. All that is needed is to mill (file) a slot for the roll pin. That will be easy enough.