HULL pro PISTON
Load: 28gm Plastic 9 shot Case Length: 70mm Muzzle Velocity: 1475 fps
The Pro Piston was introduced a year or two ago, and is not strictly a Skeet cartridge per se. It has a Bior-type wad, which is a shorter version of the full cup wad meaning you get a greater spread of pattern sooner. Hull recommend this for close range work, ie 25 yards or less, so suitable for Skeet as well as close range Sporting targets.