This is .410 Gauge Rio Top Target 2 1/2" 1/2oz. #9 Shot Ammo. Whether you shoot sub-gauges for reduced recoil or the additional challenge, Rio ammunition applies all of its experience and commitment to quality to produce a complete range of smaller gauges to meet your specific discriminating needs. Top Target C 36-65 offers softer recoil and comfort. This is a great choice for younger shooters, beginners, or for those looking for new challenges. This ammo comes packed in 25rds. per box.