Guns of the West on YouTube just posted a video this week about this. He had a Walker cut off at the beginning of the barrel comparing it to a standard Walker shooting over a chronograph.
This thread makes me want to start looking for a .44 barrel for one of my 1860s. Too bad a quick search shows they’re nearly as expensive as a complete secondhand revolver.
My 3 snubbies. All are 44 cal. Factory Pietta's and an 1858 I made. Shortened barrel, cut dovetail and installed sight, cut down and rounded frame, added the Howell latch conversion. Lots of fun. Need to work on the front site height/adjustment sometime.