k77/22rp,
Don't despair, .22 rimfires are such finicky beasts concerning ammo, your rifle could shoot them very well. I've seen some rifles shoot the Hyper Velocity very well and while the Aguila may not shoot at published velocities, it could be fine in your particular rifle (or pistol). CCI did change the bullet configuration on the Stingers some years ago. I have not tried them in a long time, I was just giving my experiences.
Regards,
JB