21st Century - Black Nitride Neck Turn Arbor Size:25cal large-diameter expansion

large-diameter expansion

lemon yellow

Pilots are machined Aluminum and are made so that each cartridge type has the neck/shoulder area of the case placed in the correct location within the annealing machine

Thick case necks can cause high chamber pressures and flyers

21st Century - Black Nitride Neck Turn Arbor Size:25cal large-diameter expansion21st Century Shooting is excited to unveil a brand new product! Introducing the Slippery black Arbors, this new products will revolutionize the way you reload. Based on our proven technology these products will reduce friction and galling, they are as hard as carbide and as slick as graphite. Can be used as an expander mandrel for setting neck tension. These are sized . 002" (+ . 0002") below bullet diameter.