RE: 22" Barrel vs 24" Barrel in a 25-06
This is from chuckhawks:
The worst that can be said about the .25-06 is that it realistically needs a 24" barrel to reach its full potential. I've had 22" barreled .25-06 rifles and the muzzle blast was pretty severe, but it still outperformed a 257 Roberts +P.
I dont beleive you'll lose much, but I would weigh the pros and cons before taking the leap.