130gr Nosler Partition 60.0 H4831SC
3100 almost exactly out of my 22" Custom Ottmar/Grisel as measured by lab radar.
Or just about any other good 130gr bullet.....
Yep, I have yet to find a 270 that H4831 didn't produce great groups and velocity with most bullets. But I only have four 270's so what do I know......