Martin,

Thanks for reminding us of an important point. Unjacketed bullets should not be shot in guns with polygonal rifling. They are susceptible to heavy leading and consequent catastrophically heavy pressures. AFAIK, Glock, and Heckler & Kock are the only pistol manufacturers using polygonal rifling instead of the conventional groves and lands.

I suspect a lot of us with only conventionally rifled pistols tend to forget about that limitation.

John