SIERRA BULLETS115772901
Sierra GameKing 270 Win .277 140gr HPBT Ammo - 100 Rounds$47.83
Availability: In Stock
The Sierra 4440T GameKing is a .277 140-grain tipped hollow point rifle bullet built for hunters who demand both precision and terminal performance from their 270 Winchester handloads. Sierra engineered this round by combining the match-grade accuracy of their MatchKing line with a polymer-tipped hollow point design that initiates rapid, consistent expansion on game. The transparent green tip serves as a reference point for ballistic uniformity, ensuring that each round from your reloading bench performs like the last—a critical advantage when you're building ammunition for hunting, where consistency means clean, ethical kills.
What sets the GameKing apart is its construction: a specialized lead alloy core is wrapped in a tough copper jacket engineered to expand reliably across a broad velocity range and deliver the penetration serious hunters need. The optimized jacket wall thickness controls how the bullet opens, preventing over-expansion while retaining enough core weight to drive through vitals. An open pocket beneath the polymer tip channels the lead instantly into expansion on impact, translating to quick, effective energy transfer. The boat-tail design improves ballistic stability and accuracy downrange, while the tuned ogive profile delivers industry-leading ballistic coefficients that matter when you're stretching shots at distance.
These are component bullets for reloading—not loaded ammunition—so handloaders with 270 Winchester brass, powder, and primers can fine-tune velocity, accuracy, and performance to their specific rifle and hunting situation. Box of 50 bullets gives you the volume to test loads, practice, and build your hunting ammunition with confidence.
| Caliber | .277 (270 Winchester) |
| Weight | 140 grains |
| Bullet Style | HPBT (Hollow Point Boat Tail) |
| Sectional Density | .261 |
| Ballistic Coefficient (2600 fps+) | .508 |
| Ballistic Coefficient (1350–2600 fps) | .420 |
| Ballistic Coefficient (below 1350 fps) | .308 |
| Quantity | 50 bullets per box |
These are .277-diameter bullets designed for 270 Winchester rifles. They are component bullets for handloading, not loaded ammunition.
These are component bullets only. You will need to reload them into 270 Winchester brass with powder and primers to create finished ammunition.
The GameKing combines a polymer tip for ballistic uniformity with a hollow point design that expands on impact. The copper jacket and lead core construction, along with the boat-tail profile, are engineered to deliver both accuracy and reliable expansion across a range of hunting distances and velocities.
The GameKing offers excellent ballistic coefficients that vary with velocity: .508 at speeds above 2600 fps, .420 between 1350 and 2600 fps, and .308 below 1350 fps. Higher BCs mean the bullet resists air drag better, maintaining energy and accuracy at longer ranges—important for hunters stretching their effective shooting distance.
SKU: 115757049 • Width: 2.2in • Height: 1.4in • Depth: 3in • Weight: 1.05oz
Availability: In Stock
The Sierra 4440T GameKing is a .277 140-grain tipped hollow point rifle bullet built for hunters who demand both precision and terminal performance from their 270 Winchester handloads. Sierra engineered this round by combining the match-grade accuracy of their MatchKing line with a polymer-tipped hollow point design that initiates rapid, consistent expansion on game. The transparent green tip serves as a reference point for ballistic uniformity, ensuring that each round from your reloading bench performs like the last—a critical advantage when you're building ammunition for hunting, where consistency means clean, ethical kills.
What sets the GameKing apart is its construction: a specialized lead alloy core is wrapped in a tough copper jacket engineered to expand reliably across a broad velocity range and deliver the penetration serious hunters need. The optimized jacket wall thickness controls how the bullet opens, preventing over-expansion while retaining enough core weight to drive through vitals. An open pocket beneath the polymer tip channels the lead instantly into expansion on impact, translating to quick, effective energy transfer. The boat-tail design improves ballistic stability and accuracy downrange, while the tuned ogive profile delivers industry-leading ballistic coefficients that matter when you're stretching shots at distance.
These are component bullets for reloading—not loaded ammunition—so handloaders with 270 Winchester brass, powder, and primers can fine-tune velocity, accuracy, and performance to their specific rifle and hunting situation. Box of 50 bullets gives you the volume to test loads, practice, and build your hunting ammunition with confidence.
| Caliber | .277 (270 Winchester) |
| Weight | 140 grains |
| Bullet Style | HPBT (Hollow Point Boat Tail) |
| Sectional Density | .261 |
| Ballistic Coefficient (2600 fps+) | .508 |
| Ballistic Coefficient (1350–2600 fps) | .420 |
| Ballistic Coefficient (below 1350 fps) | .308 |
| Quantity | 50 bullets per box |
These are .277-diameter bullets designed for 270 Winchester rifles. They are component bullets for handloading, not loaded ammunition.
These are component bullets only. You will need to reload them into 270 Winchester brass with powder and primers to create finished ammunition.
The GameKing combines a polymer tip for ballistic uniformity with a hollow point design that expands on impact. The copper jacket and lead core construction, along with the boat-tail profile, are engineered to deliver both accuracy and reliable expansion across a range of hunting distances and velocities.
The GameKing offers excellent ballistic coefficients that vary with velocity: .508 at speeds above 2600 fps, .420 between 1350 and 2600 fps, and .308 below 1350 fps. Higher BCs mean the bullet resists air drag better, maintaining energy and accuracy at longer ranges—important for hunters stretching their effective shooting distance.
SKU: 115757049 • Width: 2.2in • Height: 1.4in • Depth: 3in • Weight: 1.05oz