The seller of the steel, round trigger guard grip frame assures me that it is one of two removed from New Model Super Black Hawks and I have to believe him.
I re-measured it against my square trigger guard New Model Super Black Hawk .44 Mag. and it is the same, so it should fit that gun without any problems.
I was under the impression that a New Model Super Black Hawk Steel Grip Frame would fit a New Model Black Hawk. I just bought a convertable NMBH in .357/9mm but the steel NMSBH grip frame is about 1/16" to short in the height of the "Ears" to reach the top rear of the NMBH action/frame. The steel Grip frame measures 1 1/16" from bottom flat of cylinder area to the top of the "Ears". The original grip frame on the NMBH .357 measures 1 1/8" in the same area. If I replace the aluminum grip frame on the .357 with the steel grip frame, the steel grip frame will be too short and not reach the top of the NMBH action/frame line.
I then measured my .44 Mag Stainless Biesly action/frame and it is almost identical in measurement (1 1/8") as the NMBH in .357 Mag.
Note: The Aluminum Grip Frame on my NMBH in .357 is marked "XRN-3RED". The Serial Number of this New .357 Mag is: 37-75XXX and is supposed to be of current production.
Questions:
1. Is there an all steel "XRN-3RED" RUGER grip frame that will fit a NMBK .357 Mag.?
2. Is it possible that RUGER is using the Biesly Action/Frame on New Model Black Hawk Convertables?
Sorry for the long post.
J.Solo