MEC Mayville Engnrng INC 1311080: Introducing the MEC Marksman, a single stage metallic reloader. Reload with the ultimate precision tool. The MEC Marksman is made of ductile cast iron for strength and durability and there patent-pending shell holder self-centers each cartridge. The ram provides smoothness and accuracy for every load. Compatible with all 7/8-14 thread dies to change calibers quickly. Reload .22 Hornet to .416 Rigby with one convenient machine.