One of my favorite things to shoot in a .30-30 is a load like you describe. Using 310"-115g FNPB bullet loaded in neck-sized brass then expanded using a Lyman "M" die, over 7.0 grains of Blue Dot powder, any large rifle primer, and any brand of .30-30 brass. Seat the bullet to just engage the lands when chambered (in most guns crimping with a light crimp in the crimping groove works just fine with the bullet described as well as when using Lyman 311008, another bullet that responds exceptionally well to this load.
This load came about when dreaming up a load to familiarize my kids with center-fire rifles, I looked around the shop an spied an eight pound canister of Blue-Dot, and thought that at seven grains per load, it would yeild a thousand loads per pound, and that that canister would see my kids through EIGHT THOUSAND loads! As it turned out, it has proven one of the most enjoyable, accurate, consistent and efficient performers ever in the .30-30. We've used the load in more than a dozen assorted guns, and shared this load with countless customers all with the same results of under an inch accuracy at 50 yards, plenty enough accuracy for minute of grouse, rabbit and squirrel shooting!
Too, this load is SO quiet! It doesn't make as much noise as a .22 Magnum! It makes a superb small game load, a great plinking load, and will dispatch even the largest of varmints in suburban pest control situations! The fact is, that this load matches or exceeds the performance of modern loaded .32-20 ammo.
Just an idea, enjoy!
God Bless,
Marshall