The CORE Series was carefully designed to be dynamic enough for everyone from novices to experienced hunters, without sacrificing any quality. Designed for all shot types and most sizes, the CORE Series is perfect for a variety of outings - from hunting doves, ducks, pheasants, geese, and other small game, to shooting trap and sporting clays. The Core Series is rated for Shot sizes: BB-10 in lead, steel, bismuth, Tungsten/TSS, Matrix Loads, Duplex Loads, blends, and Hevi-Shot may Be Used in ANY CORE Series Chokes Choke Constrictions #1 Close Range Improved Cylinder #2 Mid-Range Modified #3 Long Range Full * The range for each choke is easy to iden Mfg: Carlsons