What's your platform, and which bullet are you going to use?
Lever powder is on the slowest-burning end for powders that will work in the 30-30, and should work well with the heaviest of bullets in the 30-30. I've used it with 150's,160's, 165's, 170's. It has been as accurate as any other powder, and has produced the highest velocities for me. Max charge weight should be compressed or very close to it.
