Sierra GameChanger 6.5 Creedmoor 140gr TGK Hunting Ammo 20Rd Box A4340-05

The Sierra GameChanger 6.5 Creedmoor 140-grain Tipped GameKing (TGK) load is engineered for long-range hunters who refuse to choose between laser-like precision and hard-hitting terminal power. The classic headache with standard long-range hunting rounds is finding a bullet that cuts cleanly through crosswinds but doesn't over-expand or fracture on a high-speed impact. Sierra completely resolves this conflict by fusing an ultra-aerodynamic, match-derived profile with a reinforced hunting jacket—ensuring flat trajectories and devastating downrange energy transfer.

The technical advantage lies in a hybrid design that borrows the legendary ogive geometry of Sierra's world-famous MatchKing target bullet and blends it with rugged hunting construction. Boasting a sleek boat-tail profile and an efficient 0.508 G1 ballistic coefficient, this heavy-for-caliber 140-grain projectile slashes mid-flight drag and preserves massive kinetic energy far downrange. On contact, the streamlined tip acts as a physical plunger, driving backward into a calibrated internal cavity to force uniform mushrooming while the heavy jacket keeps the lead core securely intact.

Leaving the muzzle at a uniform 2,675 FPS, this system takes the guesswork out of mid-range holdovers while maximizing terminal energy. Because the progressively thickened copper jacket wall mechanically locks the lead core in place, the bullet retains nearly all of its original weight under extreme impact stress rather than shedding mass prematurely. This maximum structural integrity allows the expanded bullet to sustain its crushing forward momentum, driving straight and deep through the thickest hide and heavy shoulder bone of medium-to-large big game.

Key Benefits

• Progressively Thickened Jacket: Heavy-duty copper wall construction prevents fragmentation under high-stress impacts, ensuring deep barrier penetration.
• Sleek TGK Aerodynamics: High-efficiency .0508 G1 ballistic coefficient slashes downrange drag and minimizes crosswind drift in open country.
• Mechanical Tip Expansion: Designed to plunge backward into an internal cavity on contact, triggering immediate, uniform downrange mushrooming.
• MatchKing-Derived Heritage: Engineered using Sierra's legendary tournament-winning target geometry to guarantee sub-MOA precision from a factory box.

Technical Specification

• Ballistics: 6.5 Creedmoor | 2,675 FPS Muzzle Velocity | 0.508 G1 Ballistic Coefficient
• Projectile: 140 Grain | Tipped GameKing (TGK) | Reinforced Tapered Copper Jacket & Boat-Tail
• Case/Primer: Premium Brass Case | Boxer Primed | Clean-Burning Propellant | Reloadable
• Logistics: 20 Rounds Per Box | GameChanger Hunting Series
• Dimensions: 6.5 Creedmoor | ~1.15 lbs Per Box | SKU: A4340-05
• Application: Medium to Large Big Game | Whitetail, Mule Deer, Pronghorn, & Wild Boar | Long-Range Precision
• Standards: SAAMI Compliant | Sub-MOA Factory Benchrest Tolerances

When precision, consistency, and terminal performance matter, this is a purpose-built solution engineered from the projectile outward. Secure your Sierra GameChanger 6.5 Creedmoor 140gr TGK from SMKW—your trusted source for technically verified ammunition that performs without compromise.