Sierra GameKing Rifle Bullets .323 cal .323" 220 gr SBT 50/ct

Sierra GameKing rifle bullets in .323 caliber deliver the stopping power and deep penetration needed for taking large North American and African game. These 220-grain boat-tail projectiles are purpose-built for magnum-velocity cartridges like the 8mm Remington Magnum, where their heavy double-tapered jacket shines. If you're handloading ammunition for serious long-range hunting or dangerous-game work, GameKing bullets in this diameter offer the accuracy and structural integrity that have made Sierra a trusted name with reloaders for decades.

The spitzer boat-tail profile cuts through wind with minimal deflection and delivers a flat trajectory downrange—critical when hunting at distance or in variable conditions. The jacket design prioritizes penetration and weight retention, which means more consistent energy transfer and better performance on larger, tougher animals. This is a no-compromise bullet for hunters who demand reliability when it matters most.

Before ordering, verify that your rifle is chambered for .323-inch diameter bullets and loaded to magnum-level velocities. This bullet is optimized for high-velocity applications and is not recommended for standard-velocity cartridges like the 8x57mm, where it may not expand reliably. Each box contains 50 bullets, ready to load into your chosen magnum case.

Key Features

• 220-grain weight optimized for large game at extended range
• Heavy double-tapered jacket for deep, controlled penetration
• Spitzer boat-tail profile for flat trajectory and wind resistance
• Designed for magnum-velocity cartridges and premium accuracy
• 50 bullets per box

Specifications

Frequently Asked Questions

What cartridges are these bullets designed for?

Sierra GameKing .323 220-grain bullets are purpose-built for the 8mm Remington Magnum and similar magnum-velocity 8mm cartridges. They require magnum-level velocities to perform as intended and are not recommended for standard-velocity cartridges like the 8x57mm.

Will these bullets work in my 8mm rifle?

Only if your rifle is chambered for cartridges producing magnum-level velocities. Verify your specific cartridge and rifle specifications before loading. Using these bullets in lower-velocity 8mm cartridges may result in poor expansion and unreliable performance.

Why choose a boat-tail design for hunting?

The boat-tail profile reduces drag and improves aerodynamics, which flattens trajectory and reduces wind drift over distance. Combined with the spitzer tip, this design delivers both flat shooting and exceptional accuracy—valuable assets when hunting at extended range.