The Nosler Varmageddon .243 Winchester 70-grain Flat Base Tipped Brass 20-round box is a specialized centerfire rifle cartridge engineered specifically for long-range varmint hunting, prairie dog field shooting, coyote management, and predator control. A primary performance challenge when selecting small-caliber predator loads is balancing high velocity and wind resistance with explosive terminal disruption on light-bodied game. Nosler resolves these operational requirements by pairing its 70-grain polymer-tipped Varmageddon projectile with precision brass cases, delivering flat downrange trajectories, pinpoint accuracy, and instant energy dump on impact.
The core technical advantage relies on Nosler's 70-grain Flat Base Tipped (FBT) bullet construction. Featuring a metallic black polymer tip seated over a thin copper-alloy jacket and alloy lead core, the bullet maintains an aerodynamic profile that resists tip deformation in the magazine. Upon contact with thin-skinned target tissue, the polymer tip acts as a wedge, driving backward into the lead core to induce violent, instantaneous expansion and total fragmentation. Its precision flat base profile maximizes in-bore flight alignment and barrel crown gas seal, delivering consistent benchrest-grade accuracy and stability out of standard .243 Win rifle barrels.
Propelling its 70-grain polymer-tipped projectile at a blistering factory-rated 3,500 FPS muzzle velocity (generating 1,904 ft-lbs of muzzle energy), this Varmageddon loading flattens trajectory and reduces holdover requirements past 200 yards. Assembled in Nosler's precision-drawn virgin brass cases with clean-burning, temperature-stable propellants and non-corrosive match Boxer primers, the cartridge guarantees smooth feeding through internal box magazines, reliable chamber sealing, and positive extraction in both bolt-action predator rifles and sporting semi-automatic platforms.
Key Benefits
- Explosive Terminal Disruption: Black polymer tip and ultra-thin copper jacket trigger instantaneous fragmentation upon impact.
- Flat Base Geometry: Enhances in-bore stabilization and crown release to deliver tight, repeatable groupings.
- Blistering 3,500 FPS Velocity: Flattens downrange trajectory to simplify holdover on small varmint profiles.
- Nosler Quality Brass: Precision-drawn reloadable brass cases ensure smooth feeding and uniform chamber sealing.
Technical Specification
- Caliber: .243 Winchester (.243 Win)
- Ballistics: 3,500 FPS Muzzle Velocity | 1,904 Ft-Lbs Muzzle Energy
- Projectile: 70 Grain | Nosler Varmageddon | Flat Base Tipped (FBT) | Polymer Tip | Thin Copper Jacket
- Case/Primer: Precision-Drawn Virgin Reloadable Brass Case | Clean-Burning Powder | Non-Corrosive Boxer Primed
- Logistics: 20 Rounds Per Box | Nosler Varmageddon Ammunition Series
- Dimensions: Standard .243 Win Geometry | SKU: NOS61029
- Application: Long-Range Varmint Hunting, Coyotes, Prairie Dogs, Predators, and Pest Management
- Standards: SAAMI Compliant | Nosler Quality Control Standards
If you're running a .243 Winchester platform for high-volume pest control, this load solves trajectory and terminal consistency issues without increasing recoil or overpenetration risk. Get consistent field performance backed by controlled manufacturing standards—available now from SMKW, a trusted source for proven ammunition.
