I've got the chance to pick up a Stainless Para P-16 .40SW at a pretty good price, and was thinking that I'd like to convert it to my favorite carry round, the .357SIG. It should be possible and would probably handle better than the .40SW.
Has anyone here done this? I know that freakshow10mm converted his to 10mm. I'm assuming that the .40SW mags would still work, as they do with other weapons.