Midsouth Shooters Supplies has a few powders that I like and are in the BL-C2 ballpark, like H335 and CFE223.
And somewhat faster powders, and powders that I really to plink with like Ramshot X-Term and Alliant 10X.
And if I didn't type this fast enough dryflash 'll lock it and tell ya to go to the "where to find"