DWalt. thanks for your note. The matching serial number is visible on the rear surface of the cylinder. It looks like this gun was properly converted and set up for target shooting. I don't have any .45 Colt dies, brass or bullets yet, as I wasn't sure until today what the gun was chambered for. So, I'll read up on light .45 loads and start accumulating reloading gear.

One immediate need is for some grips to replace the plastic Fitz thumbrest target grips on the gun now, which look and feel awful. I like the Herrett Roper grips, but for now I'll look around some more. Is the 2nd model HE frame the same as the "N" frame.