I don't own a Stoeger Navy Luger, but do own originals and a Mauser Parabellum in Navy configuration. I am a shooter of all of my Lugers, and also a handloader. That said, I own a mixed parts shooter Luger that pretty much refuses to shoot my reloads!! I have been a handloader for more years than I want to admit to, and load for all of my handguns......except this one Luger.
I have tried 115gr and 124gr of different configuration bullets, Bullseye, Red Dot, Unique, Power Pistol, etc. powders, with only partial success for this one Luger. If I feed it PMC 115gr FMJ, it is soooo happy!!
My best handload for this problem Luger is Remington 115gr FMJ with 5.5-5.6gr Unique loaded long....1.160-1.165 OAL. This load will function reliably 80-85% + of the time. It functions 100% of the time in all of my other 9mm handguns.
Many Lugers are ammo sensitive(spring sensitive and mag sensitive), so if you found ammo that your Luger likes....feed it that!!
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