I don't own a chrono so all I can go off of is BBTI. I guess I have all the dogs in the hunt (except the .41) since I own and use .44's, .357's, and a 10mm with barrels from 3" to 6.5". I just found it interesting the drastic difference between a 4" and 6.5" in a .44, and how close the listed loads were in .41/.44/10mm.
It was way closer than I thought, but as I have been informed emphatically by several posters that BBTI is doing one or more of the following: They are FOS / they cherry picked slow loads for everything but the 10mm / they made up data/or something. After all, it is not possible that the 10mm could be anywhere close to any of the magnum cartridges.
