Chronographing lugers

[Sieger]

Originally Posted by stressed

I know this is not the original topic of this thread but I wanted to add it. These are 3 standard pressure casings of different brands fired through my Luger. From left to right - Federal, Magtech & Blazer. They all exhibit a slight bulge. (Don't have a steel case for comparison, as I won't shoot it through a luger)

It's hard to see with the flash, but plain as day when looking at them in person.

Hi,

Do the bulges go all the way around the bases of the cases, or are they lopsided on one side?

Also, the Luger has a stepped chamber (slightly bottlenecked near the top of the brass). Are you taking this fact into account?

Sieger