Acquisition What Is The Fastest Target Acquisition System For Rifle Hunting?

What is the fastest target acquisition system for rifle hunting? - acquisition

What is the system of acquisition targets for the gun? Since the scale? Red Dot? Iron Sights?

Looking for something in my 22 for rabbits and pheasants, and must be fast, the line for the shooting.

PS: A Web link to a picture would be great too.

Thank you.