Looks like a Ruger LCR. I've got one in .38Spl. Regular round aren't fun and it's rate to +P.
I'd hate to shoot one in .367Mag, much less .357Mag.
I fired a LCR in .357Mag....the .38Spl rounds were easy to control....the .357Mag rounds felt like swinging an aluminum baseball bat one-handed and full-speed into a concrete pylon....I had to count fingers afterward.....
....still thinking of getting one, though....that, or a 638 Bodyguard (I
like having a SA trigger option)....