My most accurate 150-grain load has been with the Nosler Partition bullets and 53.5 grains of IMR 4350. This breaks 2800 FPS from my 20" barreled Mannlicher-Schoenauers (1/9" twist), so should break 2900 in a 24". Have not tried RE22, but did not get good accuracy from Jack O'Connor's H4831 loads!

Keep yore powder dry!!