Pretty much all the louden boomer magnums. I’ve used it in 30-378, 300 WM, I think I tried in one 300 WSM once but I don’t recall for sure. Most of the really fast stuff long range stuff has a use for it
I've used it in the 243 with 105s all the way up to the 338 EDGE with 300g SMKs. It's all I ever used in the 338 EDGE, 7-300 win mag with 162s and 180s, and the 300 RUM with 200s, 210s, and 220s. Also works very well for the 7 RM with 160-180s. It is my favorite magnum powder by far. It also works very well in the smaller cartridges with the heavies. Very temp stable powder and accurate. May not be the fastest powder, but it is usually always the most consistent and temp stable, along with 1/2 MOA accuracy and low ES. Good luck finding it these days. I have around 10# that should last me a few years anyway.
I couldnt find any, and still cant for that matter but recently I settled for a pound of the IMR Enduron version IMR 7977. I havent ran any tests with either. All in time.