Another Newbie question.

The most common length seems to be 24". But several economy guns American Knight, T/C value packs come with 22' barrels. Some of premium guns are in 26", Cabela's sells several makes in the 26" length.

Is there a perfomance difference in going from one length to another that is worth the extra money? Cabela's seems to think so. I am thinking of practical deer hunting applications 75-150 yds, not long range bench rest shooting matches