I've got a large selection of bullets that I need to get around to trying.  In general, I use slower powder than all the fellows have listed above, and shoot for higher velocities.  Sometimes it works out, sometimes it don't.  I've had some pretty consistent results with a load similar to the others using the tumble lube version of the bullet Butler's Rangers has pictured.  Blue Dot, when I had some, was a favorite powder, around 20gr with the Eagan MX3-30AR, a bullet similar to the RCBS 168gr Silly-Wet was a real performer.  It was the first cast load I shot out of my Krag and got me hooked with the majority of a 12 or 13 shot 100yd group touching each other!  The Belding and Mull 311169 is also good if kept in the velocity range it likes, 1400-1600fps.  It's Belding and Mull's version of the Lyman 311413.  Don't waste time trying for higher velocity, something about the balance of that bullet, the faster you go above the velocity it likes, the wilder it gets.  Harder alloys and slower powders hasn't helped.