Depends on bullet weight. Many are using Varget or 4166 for the 130 and lower weight bullets. If wanting to stay near the 140 and above bullets, you might consider 4451, it's another of the Enduron powders.
Bought a pound last week. I have some 123 eld's and SSt's coming to load for the Creedmoor. I think the burn rate might be too fast for the 140's so the 4451 will get almost 100fps over the 4166. I'll get a pound of the 4451 to try next time.