My aim was to replace a brass frame on a repro 1851 .44 with a steel frame. It's a Pietta, and it's not bad, but I wanted a case hardened frame and a squareback triggerguard. Finding the frame has been problematic, and I was reluctant to buy a frame because I didn't know if the .44 and the .36 were the same frame and arbor, just a different bore. I have a frame for sale that I bought, but it's way too small. It's for a 1862 pocket police. Maybe I'll just get a steel frame pistol this spring.