First off, to be perfectly honest I haven't shot a 30-30 for some time now, especially in full power loads. However, usually IMR 3031 was what I used. I did do some testing with H335 and H4895 but 3031 always seemed to work best in my rifles, one of which has a birthdate if 1911. When I do take it out these days I run mild cast bullet loads through the old girl. It was originally my Great grandfather's gun.
These days when I shoot a 30-30 it's mostly with cast bullets and either Unique or 2400. I still have one unopened can of SR4759 I can use. My favorite bullet for the 30-30 is the Ideal, now Lyman #311291 although my Ideal is marked #308291. I have two molds marked 31141 and 311041, same mold plus a clone made by the now defunct NEI and I've never been able to get any one of those to shoot worth schitt. Not in the 30-30, .303 Savage when I had one nor the .308 and 30-06.
Favorite loads are 30.0 gr. 3031/170 gr. Speer, 5.0 and 10.0 gr. Unique and various weigh cast bullets from 100 gr. to 190 gr. and I also use the 30.0 gr. 3031 with the Lyman 308291. I also have a 311291 two cavity that I sometimes use. I've had the 308291 since 1954 and it's an excellent mold.
These days I treat my 3030s as fun guns. At the most they might be used on harassing a few Arizona jackrabbits but other than that I just kill paper with them.
PJ
