Sporting Clays with a BLACK FINISH are made from 17-4 stainless and precision machined to produce a choke tube that patterns better than standard choke tubes.
These choke tubes may be used with Lead, Copperplated, Nickle, Hevi-Shot, Bismuth, Tungsten, or Steel shot. Due to the thin wall design of this choke system, steel shot cannot be used in the Modified, IM, Full or EF constrictions. See the Extended Super Steel chokes for tighter constricitons that can be used with Steel shot. These chokes are backed by a lifetime warranty.