Rcbs Flat Nose Rifle Bullet Mould - Universal Double Cavity .458" 325 Gr

The RCBS Flat Nose Rifle Bullet Mould is a double-cavity casting tool for handloaders who want to produce their own .458" rifle bullets at 325 grains. Built around a solid cast iron body with precision-ground cavities, this mould delivers consistent bullet weights and dimensions cast after cast—a foundation for repeatable reloads and reliable field performance. Whether you're working up loads for a .458 Winchester Magnum, .458 SOCOM, or another large-bore rifle cartridge, this mould gives you control over your ammunition from the pour to the range.

Cast iron moulds like this one are industry standard for rifle bullet casting because they retain heat evenly and cool at a predictable rate, helping minimize voids and ensuring dimensional consistency. The flat-nose profile suits hunting and defense applications where controlled expansion and penetration matter. The double-cavity design speeds production compared to single-cavity tools, so you can build ammunition in practical batches without burning through hours at the casting pot.

Construction centers on solid cast iron blocks paired with a 3/16-inch steel sprue plate and tempered steel fasteners—components chosen for durability through thousands of casting cycles. The mould is ground square to meet exacting tolerances, so cavity alignment stays true and bullet quality stays uniform. Casting handles are sold separately, letting you customize your setup or replace worn handles affordably if needed.

Key Features

• Double-cavity design for efficient batch production of .458" bullets
• Solid cast iron construction for even heat distribution and consistent cooling
• 3/16-inch solid steel sprue plate for durability
• Tempered steel spring washers and fasteners for years of reliable service
• Precision-ground to specification for accurate, uniform bullet dimensions
• Flat-nose profile suited for hunting and defense rifle loads
• Casting handles available separately

Specifications

Frequently Asked Questions

What rifle cartridges can I cast bullets for with this mould?

This mould casts .458" diameter bullets, making them suitable for cartridges like the .458 Winchester Magnum, .458 SOCOM, and other .458-caliber rifle loads. Always verify bullet diameter compatibility with your specific firearm and cartridge before casting and loading.

Do the casting handles come with the mould?

No, handles are sold separately. This lets you purchase the mould alone or pair it with handles of your choice from RCBS or other manufacturers at a lower overall cost if you already have compatible handles.

How many bullets does a double-cavity mould produce compared to single-cavity?

A double-cavity mould casts two bullets per pour cycle, roughly doubling production speed versus a single-cavity mould when production volume is your priority.

Is this mould suitable for a beginner bullet caster?

Yes. RCBS moulds are industry-standard tools that deliver consistent results for both new and experienced reloaders. Proper setup, heat management, and technique are essential to any casting operation, but the mould itself is built to perform reliably from your first casting session forward.