Bad extractor or bad ammo?

[Sieger]

Originally Posted by Lugerdoc

Greg, I seem to see a line on your spent casing where the bottleneck of a .30 Luger case would be before it was discharged. Hopefully, you are using 9mm luger, not 7.65mm Luger. Also the discoloration at the bottom of your case, might indicate a worn or bad chamber area. It's time to visit your local lugersmith. TH

Hi:

The original 9mm Luger chamber was designed this way to better seal the case against the chamber wall. Later 9mm pistol designs abandoned this original chamber design. Perhaps this is why the newer models are not as accurate as Georg's original creation.

Please take a good look at the original chamber specs.

Sieger