If I ever want to carry a .45 revolver, I will likely order a USFA Single Action chambering the ACP. I did briefly carry an S&W 25-2 snubby called the Effector, a special-run model distributed by John Jovino in the early/mid-1980s. Unlike the later Lew Horton N-snubs, which were purpose-built by S&W, I seem to recall that the Effectors were converted from longer-barreled sixguns, and re-packaged.
I stopped carrying N-frame revolvers after finally admitting to myself my hands are not quite big enough, or more precisely, my fingers too short. I cannot get enough finger on the trigger for proper control, and still keep the grip frame properly centered in the web of my hand. The resulting hold, sometimes termed the "h-grip," concentrates recoil in the base joint of the thumb, which may be OK with mild loads, but I am still paying for the heavier magnums I fired from N-frames over two decades ago.
The grip frames of classic-proportioned SA sixguns are totally different, being smaller and
shaped differently, much more suited to my hand size. My Ruger Bisley does have a second cylinder chambered in .45 ACP, though it is a fairly large package, overall, more of a field gun for open carry than a CC piece. SAA-sized sixguns are easier to conceal.