Lee Hollow Base Rifle Mould - Single Cavity .459" 405 gr

The Lee Hollow Base Rifle Mould in .459" 405 grain is built for serious bullet casters who want to produce consistent, quality cast bullets without the heft and complexity of steel or iron alternatives. This single-cavity mould combines aluminum construction with CNC machining to give you a tool that heats and cools quickly—meaning you'll be dropping quality projectiles just a few casts in, with minimal fatigue over long casting sessions. If you're loading big-bore rifle cartridges and want to cast your own bullets on a reasonable timeline, this mould delivers the performance and durability Lee Precision is known for among handloaders and cartridge reloaders.

Aluminum moulds have a real advantage in the casting workflow. They shed heat faster than traditional steel or iron designs, which translates to shorter cycles between casts and less waiting around. That speed also reduces thermal stress on the mould itself—important when you're running hundreds of rounds through. CNC machining ensures cavity uniformity, so your bullets come out consistent shot to shot, which matters whether you're loading for a lever gun, large-caliber rifle, or specialty handgun.

Lee Precision includes weight recommendations and suggested alloy specifications with the mould, giving you a solid starting point. From there, you can dial in your exact load to match your rifle's barrel and your hunting or range requirements. This is old-school bullet casting made efficient—no fancy electronics, just a proven design that works.

Key Features

• Single-cavity design for steady production
• Aluminum construction resists rust and cycles heat faster than steel or iron
• CNC machined for cavity precision and consistent bullet dimensions
• Quick warm-up and cool-down reduces casting time per round
• Includes weight recommendations and suggested alloy guidance
• Lower caster fatigue during extended casting sessions

Specifications

Frequently Asked Questions

What bullets can I cast with this mould?

This mould casts .459" diameter bullets at 405 grains. It's designed for large-bore rifle cartridges that accept that bullet diameter and weight.

Why choose aluminum instead of steel or iron?

Aluminum heats up and cools down much faster than steel or iron, which speeds up your casting cycle and reduces thermal fatigue on the mould. It's also rust-resistant, making it lower-maintenance over time.

What alloy should I use?

Lee Precision includes weight recommendations and suggested alloy specifications with the mould. Your exact alloy choice may vary based on your specific rifle and load requirements.

How quickly can I expect to produce quality bullets?

CNC machining and aluminum construction mean you'll typically have excellent castings after just a few casts, once the mould is properly heated and settled into its cycle.