REB

The contract ammunition was 1400 feet per second on 115 grain bullet. Military surplus will give you this performance but not commercial. The gun was proofed tested at 15 tons per square inch. We "older" guys have and know of many people who bought cheap machine gun ammo (2000 fps) or 20 tons per square inch and used with no problems (4 inch barrel).


M. Reese II (Luger Tips) suggests if you want to shoot todays commercial ammo then cut off two coils from the main spring. If you do cut the spring don't go back to the as designed ammo.


Reloaders need to modify the propellant manufactures "recommended" loads to get back to original design performance as the manufactures quote loads safe enough for the Saturday night specials, these light loads are also used for commercial ammo.


Hope this helps.