Lee Round Nose Rifle Mould - Double Cavity (Handles Included) .312" 160 gr

The Lee Round Nose Rifle Mould in .312" 160 gr is a double cavity bullet casting mould built for shooters and reloaders who want to cast their own .312" bullets. Designed and built by Lee Precision—a brand trusted for decades in the reloading community—this mould pairs simplicity with durability. Whether you're handloading for a vintage rifle, specialty cartridge, or a shooting sport that demands consistent, cast bullets, this double cavity setup lets you produce two bullets per pour, speeding up your casting workflow.

Cast bullets offer several advantages over jacketed rounds: they're economical to produce once you have the gear, they shoot accurately in many firearms, and they give you precise control over bullet weight and composition. The .312" diameter and 160 grain weight make this mould suited to larger rifle cartridges and mid-range velocities. With handles included, you have everything needed to start casting right out of the box—just add a heat source and lead.

Lee's aluminum construction is a practical choice for casting moulds. Aluminum heats and cools faster than iron or steel, which reduces the time between pours and helps maintain consistent bullet hardness. The lighter weight also matters if you're casting for hours at a time; fatigue from handling a heavy iron block can affect both your comfort and casting consistency. The crimped block halves are engineered to hold together securely under repeated heating cycles, supporting the precision and repeatability serious reloaders expect.

Key Features

• Double cavity design — cast two .312" 160 gr bullets per pour
• Aluminum construction — lightweight, resists rust, heats and cools quickly
• Handles included — ready to use out of the box
• Crimped block halves — durability and precision alignment
• Made by Lee Precision — established brand trusted by reloaders

Specifications

Frequently Asked Questions

What do I need besides this mould to start casting bullets?

This mould comes with handles, so you'll need a heat source (such as a lead pot or furnace), lead, and a way to cast and size the bullets. You may also want a sizing die if your firearm requires it, but that depends on your specific cartridge and rifle.

Why choose a .312" 160 gr cast bullet?

The .312" diameter and 160 grain weight support larger rifle cartridges and mid-range velocities. Cast bullets are economical to produce in volume and offer excellent accuracy in many firearms, especially those designed for lead bullets.

How many bullets can I produce at once?

This is a double cavity mould, meaning you cast two .312" 160 gr bullets with each pour, doubling your output compared to a single cavity design.

Why is aluminum better than iron for a casting mould?

Aluminum heats and cools faster than iron or steel, which reduces wait time between pours and helps maintain consistent bullet hardness. It's also lighter, reducing fatigue during long casting sessions.