I just tried to fit a 32 H&R round in my 30 Carbine cylinder and voila! They fit like a glove and the cylinder rotates fine with all six chambers full. Has anyone tried this? I wanted a 32 H&R Single Six with adjustable sights in the worst way but could never find one locally. I have an SP-101 but wanted a single action with a longer barrel. I am assuming that this will be like firing a 38 in a 357 magnum and I'm hoping it works with good accuracy. I've owned both guns for years and never thought of trying this. Wow, a new gun without spending a dime.......whooohoooooo!!