I've got an unconverted 4 3/4" Single six. The serial # is 4459XX. I can't figure out the manufacture date, all the charts I find don't include this # range.
Help?
Cut to length, clean up the cut, inside and out, expand to .351 ( lee makes a die), I swedge .358 lead 158rnfp bullets down to .351 (lee makes the swedge), load 'em up and go.
Google it if ya need more info. They work in both of my 07's
It's super expensive and hard to find. I've had pretty good luck making it from .223 cases. Currently working up a load using 9mm Mag cases, looks promising. I've been swedging lead 357 slugs for the bullets.