The Barnes Steward Collection 6mm ARC (Advanced Rifle Cartridge) 80-grain Sierra Tipped VarmintKing (TVK) Brass 20-round box is specialized centerfire rifle ammunition engineered specifically for high-efficiency predator control, long-range varmint hunting, and modern sporting rifle optimization. A primary operational limitation when targeting coyotes, bobcats, and distant varmints with traditional lightweight .22-caliber AR-15 chamberings is rapid velocity loss and excessive crosswind deflection across open pastures. Barnes resolves these platform bottlenecks by pairing factory-loaded consistency with Sierra’s heavy, aerodynamic 80-grain Tipped VarmintKing projectile, unlocking the energy efficiency of the 6mm ARC case to deliver flat downrange trajectories, superior wind resistance, and explosive terminal fragmentation.
The core technical advantage relies on the projectile's heavy 80-grain Sierra Tipped VarmintKing (TVK) architecture. Featuring an aerodynamic polymer tip paired with a thin copper jacket and swaged lead core, the bullet achieves a high ballistic coefficient and increased sectional density over lighter varmint rounds. Upon impact with target tissue, the hard polymer tip acts as an internal wedge, driving violently backward into the lead core to initiate immediate, explosive jacket fragmentation. This total energy transfer eliminates pass-throughs and anchors long-range predators cleanly without energy loss or runner tracks.
Engineered specifically around the short-action geometry and magazine constraints of the standard AR-15 chassis, this 80-grain loading maximizes case capacity and powder efficiency. Assembled in premium reloadable virgin brass cases paired with clean-burning propellants and non-corrosive Boxer primers, the cartridge guarantees uniform chamber pressures, low velocity standard deviations, and smooth cycling across semi-automatic and bolt-action 6mm ARC platforms.
Key Benefits
- AR-15 Platform Optimization: Engineered specifically around the 6mm ARC cartridge frame to deliver peak long-range performance from standard modern sporting rifles.
- Explosive Terminal Expansion: Thin copper jacket and polymer tip drive instant, complete fragmentation on small predators.
- Heavy Varmint BC & Energy: 80-grain payload provides higher downrange energy retention and superior wind resistance compared to standard light varmint loads.
- Premium Reloadable Brass: Precision-drawn factory brass cases and non-corrosive Boxer primers ensure smooth cycling and reliable ignition.
Technical Specification
- Caliber: 6mm ARC (Advanced Rifle Cartridge)
- Ballistics: High-Efficiency AR-15 Heavy-Varmint Loading
- Projectile: 80 Grain | Sierra Tipped VarmintKing (TVK) | Polymer Tip | Thin Copper Jacket
- Case/Primer: Precision-Drawn Reloadable Virgin Brass | Clean-Burning Powder | Non-Corrosive Boxer-Primed
- Logistics: 20 Rounds Per Box | Barnes Steward Collection Series
- Dimensions: Standard 6mm ARC SAAMI Chamber Geometry | SKU: 32565
- Application: Long-Range Predator Control, AR-15 Varmint Hunting, Coyote, Fox, Bobcat, and Target Engagement
- Standards: SAAMI Compliant | Barnes Precision Quality Control Standards
When you are out in the field running your AR-15 on long-range predator stands, having heavy-varmint ammunition with superior wind resistance is crucial. Ensure explosive, game-stopping energy transfer on every coyote with Barnes Steward 6mm ARC 80gr Tipped VarmintKing ammunition—backed by trusted service and available now at SMKW.
