Mec Wad Guide .410 Bore. This easily installed tool simply pushes into the expander button and allows you to center the .410 bullet in the chamber while you adjust other components with no damage to the primer or the case. By lifting the red lever and pushing it in you center the bullet and ensure a uniform seating depth and uniform round-to-round uniformity.The .410 Wad Guide is a must have tool for anyone loading for a .410 gauge stray bullets or for people who want to start reloading but don't want to mess with cutting a wad or using a standard wad guide. Specifications for Mec Wad Guide .410 Bore : Type/color: Black Size/finish: .410 bore Material: Plastic Package Contents: Mec Wad Guide .410 Bore The Mec Wad Guide .410 Bore is a quality addition to the MEC lineup. For more great deals on Press Parts & Accessories by MEC please browse our Mec Reloading Equipment page.