I shoot H4895 with Lapua brass and the 150 NBT/NAB for high 2800s in a 22” factory bolt gun. Can’t recall the exact charge, but it is at the top end of H’s online data. It was about what their data predicted for velocity. I bought that jug of powder when I couldn’t find Varget and it’s been good in 308 and 7-08 with lighter bullets.
45.5, and that's in heavier Lapua brass (probably about 173 grains) with longer bullets as well.
With the flat base Hornady, lighter brass and a grain less powder I'll guesstimate 2750, maybe 2800.
