Success !
Carbine was originally chambered in 56/50 Spencer ( Or one of the very close variations) and was converted to centerfire by the replacement of the block and hammer. Frank at Providence Tool Company did the conversion and made or modified the equipment needed to make ammo. Shot at the range for the first time today and using a 340 grain Lyman over 30 gr of 2F. Very happy with the results. Carbine has a heavy trigger and the sights aren't the best, but with a little work I think I can shrink the group in half.
photo shows Frank from Providence test firing, the test target. We shot from an estimated 80-90 yards.
We were really in a time crunch. I swear the bullets were still warm from casting when they were seated.
http://youtu.be/Lpw8WVhBIjo