The Black Mountain Magnum was a traditional fast twist rifle. It has a 1-28 twist. According to the T/C technician, the barrel is the same one as found on the Omega except they changed the end of course. I think if I bedded this barrel it would do even better. The only complaint with the rifle is the plastic or what ever it is black stock seems so inadequate for the quality of the barrel.
Also when I was testing the musket cap ignition before loading.. I know they do not throw all that much hotter a flame then say a #11 cap.. but it would blow the patch right back into the ramrod when I was cleaning the fire chamber.
I have thought of trying pellets in the rifle just to see if it would work. Also the breech end of the rifle, inside, is strange. When you swab, you feel a ring almost far down the barrel in the breech, just ahead of the bolster. Almost like it is some special chamber or something for the powder.
The two conical bullets hit several inches low and left. Although the two I shot were within an inch of each other. I might size some of my UC Short Mags down to .501 and then see how they do.