Chronographing lugers

[stressed]

hey Seiger. it appears to be lopsided. I was not aware of the stepped chamber.

[Sieger]

Originally Posted by stressed

hey Seiger. it appears to be lopsided. I was not aware of the stepped chamber.

Hi,

Look at your fired casings and you will note a round step in the brass some several mm below the case mouths.

This little idea was patented by Luger to assist in sealing the case to the chamber walls, upon firing. Great idea and it works quite well, too.

Again, I've never observed bulges in the bases of any 9mm Luger shot brass I've ever sized for reloading. Had I, they would have been trashed, immediately.

Perhaps, your chamber has bulged, somehow.


Sieger