I am not impressed with the 6 o'clock extractor position on the Hauck and am considering a 9 o'clock position on my current build. Even though I feel strongly that a traditional falling block should have a rimmed case, I am also considering a rimless extractor; the Ruger #1 extractor is really quite good. So I am thinking about a high wall extractor type, powered by the breech block and spring loaded like the Ruger to handle rimless cases. I do not want ejection, just extraction. I would value your ideas.  Thanks.

Pin....that must be specific to the Hauck?  Now I'm out of my depth.  Never even seen a Hauck.

I can appreciate that.  I do have a couple of central extractor guns that need a strong fingernail or a tool to remove the spent case.  Main cause being that the extractor is stopped from having enough movement by the breechblock.

The Stevens extractor is actuated by the lever, not by the breechblock as the Hopkins & Allen does it. Ditto the Ballard.   (I do so little with Winchesters that I can't recall how they do it.)  The guns I have trouble with are H&A.

A 9:00 extractor tends to twist itself on its' axle, because the point of engagement with the rim is not in the same plane as the point of engagement with the lever, (or the breechblock in some designs).  So it needs to be wider there to keep the extractor under control.  Perhaps formed into a shallow "C" shape to put the two contacts in the same plane?