CVA SB Cascade 300 Winchester Graphite Black Cerakote Bolt Action Rifle - 20in - The Cascade SB (Short Barrel) Series has all the same features found on the original Cascade. The SB Series was developed for use in tight quarters, commonly found in hunting blinds, especially when using a suppressor. This rifle also make the perfect passenger as your go-to truck rifle. Like the original Cascade, the SB series features a suppressor-ready threaded muzzle.