The Luger seems to have the potential for fine accuracy, hampered by the small sights and heavy trigger. At the range, 5-shot groups over sandbags at 25 yards were consistently around 4". Several groups had three shots in 1" or less, but I couldn't get five shots to hang together.
If accuracy potential is good, reliability proved abysmal. I used only full metal jacket roundnose ammunition; cleaned and lubed the gun before shooting; tried different magazines; and still only once in a hundred shots was able to fire a full magazine without a malfunction. Usually no more than two or three consecutive shots could be fired without a stoppage. On one occasion I must have had the thumb of the support hand on the takedown lever. Evidently during the firing cycle I rotated the lever down. The side plate flew off and the barrel/breech assembly slid forward. It could be argued this was shooter error; still, it's the first time I've had a gun disassemble during firing.
--Dave Anderson,
The "new" Luger?,
American Handgunner, March-April, 2008