Great thread!
The .30-30 is one of my favorites. I use the plainbased Accurate31-155D cast 1:30 tin-lead from Roto Metals with 5 grains of either Bullseye, Red Dot, 700-X, TiteGroup, Trailboss, WST or 452AA. No filler needed. I adjust powder charge to fall into the range of 1080 +/-30 fps in the rifle used. I shoot the same load in 94 Winchesters, Marlins, Savage 340s, etc.