I have a 4" Python barrel and am going to stick it on a 10-7 J&G sales gunsmith special frame and a recessed model 19 cylinder. I will mill and install adjustable sights on the frame. I have milled and installed sights on multiple fix sight guns. That is not a problem
I ran a K frame die over the Python threads and they came out fine and it threads in to the smith frame fine. Here is what I notice.
Barrel goes past top dead center by about 10 degrees. I can fix this by either removing about .025 from back shoulder of barrel or front of frame. No big problems.
Barrel extension is to long for even a 38 special cylinder. I can trim that and redo forcing cone to get correct clearance after timing barrel. Have tools for that.
The opening in the ejector rod shroud is to skinny for a S&W rod. A couple light passes with a carbide ball end mill will fix that.
I can install a ball detent type lock on the yoke.
But, The slanted portion of the Python barrel ends quite a bit higher than the front of the S&W frame. The way I fix that when sticking a ribbed S&W barrel on a round frame is to mill a shallow slot in the top of the frame and machine a piece of rib off an old barrel to fit in that slot and go just under the front of new rear sight tang and silver solder it in place. . But the Python barrel is even higher than that. I could make a piece that sets level with the front of the sight tang, but I don't think even that would be high enough to match the Python rib. I could set up and machine a new angle to make it match. But getting the angle set up right making the cut and getting the finish right would be a bit problematic, but not impossible
Could you guys that have Smolts post some pictures of the top of joint between barrel and frame?
I have done 2 other J&G frames. One I just mounted a 4" model 10 heavy barrel on and a 4" ejector rod.. Had to put a tiny bevel on the back outside corners of the barrels rib to match the frame radius. Shoots good.
The other I mounted a nickel recessed 357 cylinder and model 13 barrel on and it to shoots good as a 357 pinto
I ran a K frame die over the Python threads and they came out fine and it threads in to the smith frame fine. Here is what I notice.
Barrel goes past top dead center by about 10 degrees. I can fix this by either removing about .025 from back shoulder of barrel or front of frame. No big problems.
Barrel extension is to long for even a 38 special cylinder. I can trim that and redo forcing cone to get correct clearance after timing barrel. Have tools for that.
The opening in the ejector rod shroud is to skinny for a S&W rod. A couple light passes with a carbide ball end mill will fix that.
I can install a ball detent type lock on the yoke.
But, The slanted portion of the Python barrel ends quite a bit higher than the front of the S&W frame. The way I fix that when sticking a ribbed S&W barrel on a round frame is to mill a shallow slot in the top of the frame and machine a piece of rib off an old barrel to fit in that slot and go just under the front of new rear sight tang and silver solder it in place. . But the Python barrel is even higher than that. I could make a piece that sets level with the front of the sight tang, but I don't think even that would be high enough to match the Python rib. I could set up and machine a new angle to make it match. But getting the angle set up right making the cut and getting the finish right would be a bit problematic, but not impossible
Could you guys that have Smolts post some pictures of the top of joint between barrel and frame?
I have done 2 other J&G frames. One I just mounted a 4" model 10 heavy barrel on and a 4" ejector rod.. Had to put a tiny bevel on the back outside corners of the barrels rib to match the frame radius. Shoots good.
The other I mounted a nickel recessed 357 cylinder and model 13 barrel on and it to shoots good as a 357 pinto
Last edited: