Sierra 4345 Tipped GameKing 6.5mm 145gr 100/Box

The Sierra 4345 Tipped GameKing in 6.5mm is a polymer-tipped, boat-tail rifle bullet engineered for hunters who demand expansion and controlled penetration in one package. Built around a 145-grain weight and a thick jacket design, this bullet delivers the kind of terminal performance that works across a spectrum of game—from whitetail deer to larger animals like elk and bear. It's the kind of component that serious reloaders choose when they want to build ammunition that performs as hard as they hunt.

The polymer tip serves a dual purpose: it initiates rapid, reliable expansion on impact while the heavy jacket underneath manages penetration, preventing over-expansion on closer shots and maintaining bone-breaking energy on longer ones. That balance is what separates a good hunting bullet from one that puts meat on the table. Sierra designed this round with modern cartridges in mind, so if you're working up loads for newer magnums and fast-twist platforms, this is a bullet built for that job.

One critical detail: this bullet requires a barrel twist rate of 1×8″ or faster to stabilize properly. That's not a suggestion—it's a requirement. Check your rifle's twist before you order, because an unstable bullet won't group, won't expand right, and won't perform. If your rifle spins slower than 1×8″, you'll need to look elsewhere. Once you've confirmed compatibility, you're looking at 100 bullets per box—enough to work up a solid load and hunt with confidence.

Key Features

• Polymer tip design for consistent expansion and velocity retention
• Thick jacket for controlled penetration across multiple game sizes
• Boat-tail profile for improved ballistic coefficient and downrange energy
• 145-grain weight optimized for 6.5mm hunting cartridges
• Requires 1×8″ or faster barrel twist rate for proper stabilization

Specifications

Frequently Asked Questions

What twist rate do I need for the Sierra 6.5mm 145gr Tipped GameKing?

This bullet requires a barrel twist rate of 1×8″ or faster. Slower twist rates will not stabilize this bullet, resulting in poor accuracy and unreliable performance. Always verify your rifle's twist before ordering.

What game can I hunt with this 6.5mm bullet?

The 145-grain Tipped GameKing is designed to handle whitetail deer, elk, bear, and other game in that size range. The polymer tip and thick jacket work together to deliver reliable expansion and penetration across multiple game sizes.

How many bullets come in a box?

Each box contains 100 bullets, giving you plenty of component for load development and hunting season.

What's included with this bullet?

You receive 100 Sierra Tipped GameKing bullets per box. Primers, powder, cases, and other reloading components are sold separately.