Lyman Round Ball Mould, Double Cavity, .451 in.

The Lyman Round Ball Mould, Double Cavity, .451 in. (Lyman part no. 2665451) is built to throw consistent round balls for muzzleloader and cap-and-ball revolver shooters who care about accuracy. Lyman machines this precision mould to produce a minimal sprue on every ball, since excess sprue throws off both weight consistency and aerodynamic balance downrange. Target shooters have relied on Lyman’s round ball moulds specifically because the tight, repeatable casting this design delivers is the kind of consistency that shows up in group size. The double-cavity layout lets you cast two balls per pour, speeding up a casting session compared to a single-cavity mould.

Key Specifications

• Casts .451-inch diameter round balls.
• Double-cavity design casts two balls per pour.
• Produces a minimal sprue on each ball for consistent weight and balance.
• Built to the accuracy standard target shooters expect from Lyman precision moulds.

Frequently Asked Questions

What is this mould used for? Casting .451-inch round balls for muzzleloaders and cap-and-ball revolvers.

Why does sprue size matter on a round ball? Excess sprue throws off both the ball’s weight consistency and its aerodynamic balance in flight, which hurts accuracy.

Buy the Lyman Round Ball Mould, Double Cavity, .451 in.

Cast your own consistent, low-sprue round balls at home. Order this Lyman mould from our Lubbock, Texas gun shop, where our full reloading equipment selection ships fast and insured.