I've loaded those kind of bullets for kids to shoot in 30/30s...
I've used Unique, Blue Dot, SR 4759...and several others...
SR 4759 was the most accurate...
8 to 10 grains of Unique, turned the 30/30 into a recoiling monster similar to a giant spitball gun... with the recoil of Grandpa spitting while chewing his chewing tobacco...
the kids sure loved shooting them and loved shooting a lever action, just like cowboys on TV...