Snail Drums
 

In what year did the first and second version appear?

The real question is why are there bottle-neck rounds in an artillery magazine?
dju

First snail drums were developed as early as 1915. The second type were more simplified and production began around 1916 or 1917, for whatever reason I can no longer find results for it on google like I used to be able to and did frequently.

As I recall, he (Eric) has a known pre-war commercial Artillery Luger so he may have loaded up a drum mag with .30 Luger ammo if that’s what his commercial artillery is chambered for. I suppose he is the one most apt to answer that one though.

you can shoot either round through a trommel mag (not that I could ever get mine to work in either caliber :D )

George Fortier pestered me to prove .30 Luger would work. 32 rounds spit right out. You don't need to use an Artillery. A snail drum works fine with a 4 inch barrel.

Correct. I once tested mine in a Swiss 06/29. Worked perfectly.

I didn't notice but works fine!!!