I'm using the 400 grain Trophy Bonded Bear Claws with my 458 WM rifle, my brown bear loads. I've used the 300 grain TBBC's in the 375 H&H and 225 in 338 WinMag, both with outstanding results in bear and lesser game. Our shots are almost always at closer range (100 yards or less), so this 22 inch will only be an asset in the thick alders and willows, with MV not being a major issue. I was just curious to hear from those who have compared their chronographed loads with the factory/loading manuals using a 22 inch barrel.