I've all but decided that my next handgun is going to be a 38/357 Blackhawk, just not sure on the barrel length. I really want the convertible with the 9mm cylinder, but I have a question. I know the projectile diameter for 9mm is .355, and the 38/357 is .357, but what is the bore diameter on the Blackhawk, and is it different on the convertible models? I would think not, as it would seem logistically more difficult for Ruger to have 2 different barrels. Anyone here have both? Is there a noticeable difference in accuracy between the 2 cylinders on the convertibles? I know I'm probably overthinking it, but figured I'd ask those that know.