The Lyman 2670638 4-Cavity Bullet Mould is made from solid leaded-steel and machined to an exact and smooth super fine finish. The moulds is then heat treated (that is why it is blue in color) and feature hardened steel alignment pins to provide many years of bullet casting service. Sprue plates is made from solid steel, ground flat and held tightly in place with tempered steel spring washers and screws. In addition, break-in is often half the time required for iron moulds.
|Material||Machined Leaded Steel Mold Blocks|
|Common Sizer Die Diameter||.401"|
|Sprue Plate Material||Steel|
|Compatibility||Lyman #401638 40 S&W/10mm Auto Bullet|