Are the Colt Police Positive and Official Police MKIII revolvers built on the same size frame? Just wondering what the difference was, other than the shrouded ejection rod on the former...
The Police Positive is a D-Frame, while the Official Police MkIII would be a J-Frame. (Non-MkIII Official Police would be an E-Frame.) The J and E frames are significantly larger than the D frame. Internally, the J-Frame series uses a coil mainspring instead of the V mainspring of the old style Colt revolvers like the D and E frames.
There're a couple sharp looking Colt's on an auction site that've caught my eye...reason I asked, can I assume that the larger frame would be stronger, as in able to handle occasional +P diet?
The Colt J-Frame was used for the .357 Magnum Trooper MkIII and Lawman MkIII. .38 Special +P shouldn't be a problem for the Official Police MkIII. However, the older Colt D-Frames (non-shroud) probably would not be a good candidate for the +P loads.
