Lee Black Powder Minie Mould - Single Cavity .575" 472 gr

The Lee Black Powder Minie Mould is a single-cavity casting tool designed for shooters who load their own .575" minié bullets. Built from aluminum, this mould strikes a practical balance between durability and usability—it resists rust while remaining significantly lighter than traditional steel or iron alternatives, reducing hand and arm fatigue during longer casting sessions. If you're rolling your own ammunition for historical rifle shooting, reenactment, or traditional muzzleloading, this mould gives you the control to produce consistent 472-grain projectiles without the weight penalty of heavier materials.

The construction process matters in casting. Lee machines each cavity with CNC precision to ensure roundness and diameter consistency, so you're not fighting dimensional variation from bullet to bullet. The aluminum also heats and cools faster than iron moulds, which means shorter cycle times between pours and less standing-around during your casting session. That thermal responsiveness can make a real difference if you're casting a larger batch for the range or field.

One realistic note: these moulds are sold by weight based on the suggested alloy composition. In practice, slight variation in the exact weight of your finished bullets can occur depending on your specific alloy mix and pouring technique. That's normal for cast bullets and shouldn't surprise experienced reloaders, but it's worth knowing going in.

Key Features

• Single-cavity design for .575" minié bullets
• Aluminum construction resists rust and reduces overall weight
• Approximately 33% lighter than steel or iron moulds for reduced fatigue
• CNC machined for precise roundness and size control
• Faster heat-up and cool-down cycles for efficient casting workflow

Specifications

Frequently Asked Questions

Will this mould work with my black powder rifle?

Yes, the .575" diameter and 472-grain weight are sized for traditional black powder minié rifles. Verify your specific firearm's bore diameter and bullet seating preference before committing to a large casting batch.

Why is aluminum better than steel or iron for a bullet mould?

Aluminum naturally resists rust, which extends mould life, especially if you're storing it between shooting seasons. It also weighs roughly a third less than iron or steel, reducing hand strain during extended casting sessions. The faster thermal cycling (heating and cooling) also means you can work through castings more efficiently without waiting as long between pours.

Can I expect exact bullet weight every time?

The mould is sold by weight based on a standard alloy composition. In real-world casting, slight variations in bullet weight can occur depending on your specific alloy mix, pouring temperature, and technique. This is normal and expected with cast bullets.

Is this a single-cavity or multi-cavity mould?

This is a single-cavity mould, meaning it produces one bullet per pour. Single-cavity moulds are preferred by many shooters for the precision and control they offer, though they require more pours than multi-cavity alternatives to cast the same volume.