Luger High Angle Jam

[villiers]

If the hold-open functions correctly (you can check on this by opening the toggle action fully with an empty mag fully inserted), either the main spring is too strong, or the ammunition is too weak to fully open the toggle action after the last round has been fired. My re-loaded plinking rounds often fail to hold the action open after the last round, whereas 5 grains always does the job (except in winter when it gets below -10 degrees C.)

In Germany, Magtech 9mm Luger is often used by gunsmiths as reference ammunition.

PS
I´ve often wondered why the Mecgar mags always seem to work so much better than the WWII or East German expensively extruded and milled type.