I have been shooting 240 grn XTP's, win. brass, CCI magnum pistol primers atop 24 grains of H110. I have been using them in my 1894s and a Ruger SRH. The shoot accuratly and show no excessive pressure signs. But the cases on both come out very sooty/dirty. I read somewhere on this that the case might not be sealing the chamber correctly due to a insufficient crimp. Or is this normal for H110. I have plenty of neck tension as I can see the outline of the bullet in the case. I was using what I thought was a heavy roll crimp, and seat and crimp in two steps. How can you tell if you have a good crimp. I have compared mine to factory crimps and they look the same. The die's I'm using are RCBS carbide. Also the brass is once fired and them full lenth sized. Any help I can get would be greatly appreciated.