Yeah that's a big difference, a quick look on strelok shows the 22-250 has roughly a 125 yd head start, at that point it's about the same as the shorty 223 is at the muzzle. I'm sure that's a big part of people's issues and how the comparison is tilted so far to the bigger cartridge.

Someone shooting a 24-26" 223 bolt gun loaded up to max would shorten the head start of the 22-250 by a fair amount.
photobucket sucks