I went up and got the notebook to relay 2 very good, very STOUT loads! First these are both from the 46th edition of lymans loading handbook(and not in the 49th). My Favorite; 405GR cast wheele weights, CCI large rifle standard primer, 47.0gr IMR3031 roll crimp then taper crimp. Test rifle 1886 Browning 26" barrel 1618 fps 10' extrema spread. Out of Marlin Guide Gun 5 shots as fast as I could 3" group at 50 yards offhand- VERY HARD on shoulder! also very hard on Bears! Load #2, 400gr Speer 52 gr IMR 3031,same CCI primer same 26" Browning 1806fps, 100'e.s.(There are better, but works well) Never tried in Marlin, the cast load is all I need for problems(I keep 40 rounds at all times). There are lots of good light loads for plinking, but in times of trouble a good 45-70 and good ammo is all you'll need.These are proven loads even if 3031 is "Old School"! By the way, I have a very nice repo Sharpes 1874 and I don't let the 2 ammos any where near each other!!! The Sharps gets heavy soft bullets over Black Powder only