.30 Caliber failure to feed

[davjed]

I reload for an 8" .30 barrel and use Unique for a slower burn down the longer barrel. For my shorter 3 7/8" 9mm barrel I use Bullseye for a quicker burn in a short barrel. I seem to feel it cycle slower with the Unique. Perhaps a quicker burn rate would suit better in your short barreled Luger. Just my 0.02.