Hodgdon has a formula for using TB that is idiot proof in rifle cases on their website. Ed Harris has developed loads using Red Dot in reduced rifle loads. Google Ed Harris and Red Dot and it should come right up. SR4759 is a bulky rifle powder made specifically for reduced rifle loads. Lyman has lots of data using Unique and other pistol powders with cast bullets.
I don't own a 30-30 so I can't give you any info based on personal expirience.
I don't own a 30-30 so I can't give you any info based on personal expirience.