The stats for those +P Gold Dot loads show it to be pretty hot. The original load for the P.08 Luger was a 123 grain bullet at approximately 1090 fps. It's also a rather expensive cartridge to be shooting often.
The Luger operates best with a specific impulse provided by the cartridge. The best powders will be fast to medium burning in a standard Luger. However, such powders would likely require pressures beyond reasonable to operate what you have. If you reload, I'd try a powder such as Autocomp or Unique that burns slower and longer down the barrel and has a longer "peak" in it's graph pattern than a faster powder. Start low and work up keeping a very close watch for signs of pressure.
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