The Sierra Tipped GameKing 6mm 90gr hollow point boat-tail rifle bullet (brand part no. 4100) is built for .243-caliber hunting rifles, using an optimal jacket wall thickness that controls expansion while retaining weight on impact. Sierra engineers an open pocket under the polymer tip that expands the lead core instantly on impact, paired with a tuned ogive for a high, industry-leading ballistic coefficient and a boat-tail base for stable flight and accuracy. That combination gives .243-caliber handloaders a flat-shooting bullet that opens reliably on game. It ships 100 to a box.

Key Specifications

• 6mm bullet diameter, .243 Caliber cartridge fit for standard .243-class rifles.
• 90-grain bullet weight for a fast, flat-shooting .243 hunting load.
• 100 bullets per box for a full handloading batch.
• Hollow point design for controlled expansion.
• Boat-tail base for stable flight and accuracy.
• Optimal jacket wall thickness controls expansion and retains weight.
• Open pocket under the polymer tip expands the core instantly on impact.
• Tuned ogive for an industry-leading ballistic coefficient.
• Ships at approximately 1.82 lb per box.

Frequently Asked Questions

What cartridge does this bullet fit? A 6mm-diameter, 90-grain projectile built for .243 Caliber rifle cartridges.

How does the polymer tip affect expansion? It sits over an open pocket in the bullet’s nose, which expands the lead core instantly on impact rather than delaying expansion.

Buy the Sierra Tipped GameKing 6mm (.243) 90gr Rifle Bullets

Order this box of 100 Sierra Tipped GameKing 6mm projectiles from our reloading bullets selection for flat-shooting, reliably expanding .243 hunting loads. Order from our Lubbock, Texas gun shop for fast, insured shipping nationwide.