Want to do some paper-punching or short range hunting with your magnum rifle? This is a great choice. If you're shooting small animals at close range, a typical domed pellet that you'd use on your magnum .177 airgun would not deposit all of its energy, as it would just pass through. A wadcutter will transfer a lot more of it.

For some reason, these shoot a LOT more accurately than RWS Meisterkugeln Rifle out of my higher powered air rifles. Probably due to the heavier weight.

Advantages: Finally, a wadcutter that works well in magnum class air rifles. They cut nice clean holes in paper, and I bet they would hit your typical backyard pests HARD. As an added pesting benefit, the terrible long range ballistics mean that if you miss, they won't carry as far, nor as much energy.

Disadvantages: Not aerodynamic, so they're for close range only. (< 20 yards)