Many moons ago I bought a Ruger Blackhawk in .30 Carbine caliber. I had a ton of .30 Carbine ammunition and wanted something other than a rifle to shoot it up with. I had one issue with the cylinder, but Ruger fixed it very quickly. When they reamed the cylinder throats they do three cylinders at a time and then rotate and do the other three. Well, somebody must have went to lunch before he/she did the other three because that cartridge headspaces on the mouth of the case in the cylinder and every other throat was tight and would shave bullet jacket material off the bullets in those three throats. Then, those three chambers would not allow new rounds to go fully into the cylinder due to half-circle rings of bullet jacket material build up at the end of the chamber. Once they reamed the throats properly, that Ruger was one of the best I've ever owned. While sitting on our deck having a cold one, I had that revolver on the table next to me. A rooster pheasant popped his head up above the weeds out back around 30 yards off. I got really lucky and shot his head right off. Had to laugh over that one.I agree. The .357 or .45C will a better job. Ss will the .41 or .44. I have all 4.
My main interest in the .30 is for a light, easy shooting, lead bullet load. A 85 gr bullet at 750 fps would be a fun rabbit/ varmint load and to teach the grandkids.
Full power loads will be only used as coyote or hog medicine.
I use .32-20 bullets in .762 x 39. I have an old Russian single shot that does well with the 115 gr sized at .312. I use the same bullet in .32 mag and .327 mag.I had a cast bullet mould for .32-20 bullets that every one told me could not be sized down to .308 diameter from "as cast size". Well, not one to listen, I tried it anyway, and those .309 diameter bullets were some of the best and most accurate bullets I ever shot out of that revolver.