A Single Six .327 is a no-brainer, and I'd like to convert my H&R Mags if Ruger doesn't do the right thing there.
Boss... the scores of folks who know and love the .32 H&R Mag single six revolvers would have made many of them
by now and you'd have heard of them... if only it were possible.
Cylinder is too short.
Most of those guys have been hot-rodding the pants off .32 H&R for 25 years, so they are nearly there already.