What ever happened to the good ol' days when gun guys argued over ridiculous caliber differences {30-30 vs. 32 Special???}.....Now we debate whether a propane device cannot possibly do it and you better send your cases to NASA to have them annealed in a thermo-nuclear powered, computer controlled, 42 gig, programmable, meglinating diethlyzer or they are ruined and to be thrown away!!!! Good god Y'all!!!!!! I guess I never realized I could shoot 1/4" groups and still be doing things so wrong!!!!!