how to clear a jam?

[rayalbers]

At times (maybe once in 30 - 50 rounds) my 1938 S-42 shooter fails to fully extract (or eject?) the spent casing, and the next round jams up with the tapered end of the bullet under the spent casing, which seems to be partially extracted.

So at this point, I can't remove the magazine because the new cartrige is partly out of the magazine. What I do is to find some way to manually hold the toggle fully back, and use a screwdriver or the tip of a takedown tool to pry out the spent casing - actually, "slide" might be a better word than "pry" and the problem does not seem to be cartrige binding in the chamber, because once I finally get my hands steadied from the strain of holding open the toggle, the casing slides out pretty easily but boy, I wish I had about four more hands and arms to execute this maneuver! Especially because, once the casing has slid out, I still have to turn the pistol over so the casing will fall out, and at this point sometimes I lose my grip on the toggle and have to start all over. Is there an easier/better way?

As to why it fails to extract, I've read the posts under the malfunctioning Luger thread and they are helpful. I do have a mis-matched extractor. The bluing has worn away a bit on one side, so I've stoned it a bit to make sure it is smooth and not binding. The spring seems pretty stiff, but when I examine the lower edge - the curved part that I guess is supposed to match the curve of the casing - I see that one corner is chipped away - picture this elipsis ) with the upper edge flattened a bit. This is probably the root of my problem.

Anyway - any tips on clearing the jam when it happens??

Ray