Thanks to the Forster Bushing Bump Neck Die Kits, precision reloaders can now finely control the amount of tension put on the necks of their cartridges. Each of these sizing-die kits includes a hand-polished sizing die that perfectly matches the caliber of your firearm, as well as three hand-selected bushing sizes that are picked by Forster staff themselves. Each of the bushings are finely machined to a smooth internal finish. Available calibers in the Forster Bushing Bump Neck Die Kits are .284 Winchester, 6.8 SPC and 6mm Creedmoor. Mfg: Forster Products, Inc.