A .22 out of the same length barrel as a .25 is about the same power.
But the .25 is more reliable because it is center-fire.
Admittedly, I havent really looked at .25s since some time in the 80s. Is there such a creature today?
Im not sure I could justify the when, how , and why for such a thing rather than another but just in case I run across a good deal...