204 I think in my case it's the difference in the .223 from a 16" barrel at 3050 FPS, vs the .22-250 at 3550 FPS from the 22" barrel of my Remington 700. Five hundred FPS is enough to make for a very notable difference in the final outcome. I load both cartridges with 55 grain Sierra Game King HP's. I don't load my AR's as hot as bolt action loading data allows for a bolt rifle. I also don't load my .22-250 ammo to maximum velocity either. Other's MMV..