Lee 533-410-M Improved Minie Ball Mould .53 Cal 410 Grain Single Cavity

The Lee 533-410-M Improved Minie Ball Mould is a single-cavity bullet mould that casts .53 caliber (0.533") Minie balls weighing 410 grains, built for black powder reloading and historical firearms. Its aluminum construction resists rust and weighs about a third less than steel or iron moulds, which reduces hand fatigue during long casting sessions.

CNC machining holds the cavity to precise roundness and size, and the aluminum body heats and cools faster than steel for quicker, more efficient casting cycles. It suits black powder enthusiasts and Civil War reenactors who need consistent, accurate Minie balls.

Key Features

Highlights

• Single-cavity mould casting .53 caliber (0.533") Improved Minie balls at 410 grains
• Aluminum construction resists rust and is 33% lighter than steel or iron moulds
• CNC machined for perfect roundness and precise size control
• Faster heating and cooling cycles for efficient reloading

Materials & care

The aluminum mould resists rust. Store it in a dry place and keep the cavity clean to maintain precise roundness and size control.

How to use

Preheat the aluminum mould, pour molten lead into the single cavity, allow the bullet to cool, then open the mould and release the cast Minie ball. The aluminum body heats and cools faster than steel or iron for quicker casting cycles.