Gamo have a new break barrel air rifle called the Hunter Extreme. They claim it is the fastest spring air gun on earth.
The .22 rifle will push a lead pellet at 950 fps. From my limited knowledge of air guns, I think this is 10-20% more power. The downside is that is take 65 lbs of effort to cock the rifle.
Velocity: 1300 feet per second (fps) with PBA*, 950 fps with Lead
Max Energy: 32 Joules
Break Barrel: Single Cocking System
Barrel: Jacketed steel bull barrel
Cocking Effort: 65 lbs
Trigger: Second Stage adjustable
* Gamo PBA: Performance Ballistic Alloy. A lighter non-lead brand of pellets.
In a promotional video from Gamo a hunter takes down a 250 pound boar with the .177 model using the PBA pellet (being pushed at 1600 fp/s).
I am pretty skeptical about this video. I originally uploaded it to youtube to embed it on the blog but then decided to delete it. I do not think they should be encouraging kids to go pig hunting with a .177 air rifle. Especially since the video looks like a setup – a docile pig is shot at near point blank range from an elevated angle.
More info on the rifle and the video mentioned above can be had at the Hunter Extreme website.