Every thing I've tried has worked, never had a failure.
Winchester 30 Luger slows down drastically if I fire it over a chronograph. They claim 1230 fps from a 4.5 inch barrel, DWM's original spec. I could not get a single round up to that velocity with a 6 inch barrel. Ejection is very weak out of my Ruger P89 although it never failed.
The original Glisenti was chambered for 30 Luger, I'd nominate that for the weakest gun around, but it would be extremely rare.
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