Rcbs Round Nose Pistol Bullet Mould - Double Cavity .310 120 Gr

If you reload pistol ammunition, a quality bullet mould is essential to your consistency and economy. The RCBS Round Nose Pistol Bullet Mould in double cavity .310 120 grain gives you the platform to cast accurate, uniform bullets batch after batch. Built from solid cast iron blocks machined to exact tolerances, this mould delivers the precision repeatability serious handloaders expect—whether you're loading for match sessions, general practice, or field work.

Cast iron construction means durability under the thermal stress of repeated casting cycles. The mould blocks are precision-ground square to ensure perfect alignment, and steel pins keep the cavity blocks mated true even after years of heavy use. That matters: sloppy alignment leads to inconsistent bullet shape and weight variation. RCBS engineered this mould to hold up.

The 3/16-inch sprue plate is secured with tempered steel screws and spring washers—a straightforward, robust design that won't loosen through hundreds of castings. If you're committed to casting your own bullets rather than buying factory-cast or swaged rounds, this double-cavity mould lets you work efficiently without sacrificing the accuracy your reloads demand.

Key Features

• Double cavity design for higher output per casting cycle
• Solid cast iron construction for thermal durability
• Precision-ground square blocks ensure accurate alignment
• Steel alignment pins maintain cavity alignment under repeated use
• 3/16-inch sprue plate with tempered steel fasteners
• Casts .310 caliber round nose bullets at 120 grains

Specifications

Frequently Asked Questions

What caliber pistol does this mould cast for?

This mould casts .310 caliber bullets at 120 grains. Verify compatibility with your specific pistol's chamber and reloading data before use.

Why choose a double cavity mould?

Double cavity moulds cast two bullets per cycle, which increases your throughput compared to single cavity designs. If you cast in volume, this saves time and effort.

Will this mould hold up to heavy use?

Yes. The cast iron blocks are precision-ground and held square by steel alignment pins, so the mould maintains its accuracy even after extended use. Proper care and regular cleaning will keep it performing reliably.

Is the sprue plate easily adjustable?

The 3/16-inch sprue plate is fastened with tempered steel screws and spring washers, which provide a solid, dependable hold without the need for frequent adjustment once set.