FWIW;
Nobody has mentioned IMR4831, which surprises me.
I was using RL-22 in my 24" beautiful Claro walnut Vanguard until a fellow shooter at the range asked if I would chrono his l80gr load in a 26" Mark V. It registered 3245 (without correction)into tiny little groups. I asked what load he was using and he said a load out of Hornady's manual (Fourth Edition - the latest at the time), 81.8grs of IMR4831. I tried it in my Vanguard (Remington brass)and never went back to RL-22. Mine came very close to Hornady's results from a 24", Mark V. Always under an inch at 100, just shy of 3200fps.
Interestingly, I'd also tried IMR7828 and never got the velocity or accuracy of RL-22. Hornady's results were 100fps less than RL-22 or IMR4831 with IMR7828. The sole exception was with the heavyweight 220's. My results reflected Hornady's. YMMV.
