Load slugs for less than standard trap loads. The Lee DRIVE KEY slug is loaded in a standard trap hull with standard wad and conventional folded crimp. Slug loads are produced with any standard shot shell reloading press. Lee Shotgun Slug Moulds feature the exclusive drive key. The drive key positively rotates the slug in rifled shotgun barrels. The key doubles as a support rib allowing use of a standard trap wad - no need for a support wad or base filler. Sabot wad design outperforms rifled slugs in rifled slug barrels. Velocity and accuracy meet and exceed expensive factory loaded rifled slugs. Molds feature self centering automatic core pins for maximum speed and convenience. Mold is complete with sprue plate, handles and complete instructions with suggested loads.