That's right – no good for an AR-15, I'm afraid. This round is more commonly known as the 22 Savage Hi-Power, and its bullet wouldn't even pass through an AR-15's bore.
We do have a few good 5.56x45 options in stock for you right here: luckygunner.com/rifle/5.56x45-ammo. M855 ammo should treat your AR-15 well!