I've started doing, a little Research on, 24", 1-9 Twist, Braked, Barrels using, 69 gr. TMK's & SMK's and, 73 gr Berger BT's and it looks like,.. 3,400 to 3500 FPS with, StaBall, H4350 or, H4831 is, safely, doable.
Might subtract,.. 50-60 FPS for, the shorter, 22" barrel.
.22 Creed will "Rival", the .22-250 AI, and .220 Swift for, Velocities.
I'd compare all 3 for, Velocity Data but, work up Loads,.. CAREFULLY
Starting from, close to, the higher end, .22-250 Powder Loads, HAS been, recommended