In the .223 I use all of these and all meter well.
AA2230, AA2460, AA2520, W748, H335, H322, BL-C2. Somewhere along the line with one of them you should be able to find an accurate load and get high velocity as well. I actually have no favorite among them and use all to see what works best in any given rifle.
Varget is another good one but does not meter nearly so well.