correct me if i'm wrong, but the leaving 1 chamber empty is do to the old model not having the transfer bar saftey, and the possibility of an accidental discharge if dropped or the hammer is hit hard enough?
personally i like the clicks......sounds neat. course i don't wanna blow my foot off either. This will probably be more of a range gun, i acutally use my Security Six as my hunting back up, unless this one proves to be as accurate.
If it's not a gun you plan on carrying concealed, then I wouldn't worry about it. At the range get into the habit of loading 5 rounds. Even when used as a back up gun for hunting or a hiking/camping gun, 5 rounds is fine. Just remember to put the hammer on the empty chamber, just in case.
I've been aware of the "load 5" rule...never noticed it happening on TV till I got to see the end of the Shootist with John Wayne...he actually drew and put the sixth round in his gun---then put the sixth in another and stuck it in his belt..before going to his last gunfight...now, that's detail!!! Love that clickety-click sound!!!
According to the frame. The older Old Models were XR3 frames. Around 1962 the redesigned grip frame was introduced as the XR3-RED. That frame is the same size as the New Model introduced in 1972 and is marked XRN-3RED.