Do you mean this one? http://www.gunshopfinder.com/springfield/SA9131.asp

Your 9222 is already close to the M21, or anyway closer than you'd be with the scout rifle. How precise do you need to get? Are you handloading your ammo or using factory?

From what I've seen the difference is several hundred dollars, which is a lot to me but maybe not to you. The difference in performance is maybe 1/2 MOA?

For the difference you're getting the Kriger barrel instead of the national match, slightly better sights, slightly better trigger and the adjustble comb. For me those wouldn't be enough to justify the cost unless I was a match shooter.

YMMV, and all that.