I'm running 36 grains of LVR with 150gr Nosler Ballistic Tips in my Handi Rifle. Chrono'd at 2300 fps, accuracy around 1.5 inches for three @ 100.
I never tried for more velocity or did any load work for accuracy, I wanted a load that was capable at 200 yards, this gives me that both energy and accuracy wise. I'm not sure I could have got much, if any, past 2400 with this combo had I wanted to, not with recommended max loads anyhow. My OAL with this combo is 2.710, about .020 off the rifling.