Igor,

The cast bullets haven't work too well in the 41, 44, 50 Eagles. Two factors appear to account: polygonal rifling and the gas operation. They do function; however, not as well in my experience as with the jacketed bullets. I've had good luck and great accuracy with jacketed bullets from 170 - 220 in the 41; 180 - 270 in the 44; 300 - 385 in the 50.

Doc