I have a three screw .30 carbine Blackhawk. had one in new model form as well. I got tired of trying to get the empty cases back out of the cylinder on the New Model I had so I gave it to a buddy who wanted one. I found the three screw at a gun show and as the price was right, the gun was 99 percent and had the box and all the paperwork, I slapped down the $200 the guy wanted and it came home with me.
My take on using the .30 carb. Blackhawk took a different track with this latest acquisition. Rather than going the full blown carbine loads, I went to a cast bullet and 5.0 gr. of Unique. Now my 68 year old eyeballs ain't what they used to be, but from a sandbag rest, I can put five rounds into a group the size of a quarter at 25 yards, and can usually hit a rabbit in the head at 50 yards if he's standing still. Even a body hit doesn't tear up very much meat. Bullet is Lyman's #311316 cast from wheel weight metal. What was once a total PITA is now a favorite fun gun.
Paul B.