The Federal Premium 308 Winchester 168 Grain Sierra MatchKing BTHP is a popular choice among precision rifle shooters, known for its accuracy and consistent performance. This detailed analysis explores its ballistics, providing you with a comprehensive understanding of this ammunition's capabilities. Note that the data presented here is based on manufacturer specifications and real-world testing, and may vary slightly depending on environmental conditions, barrel length, and firearm used.
Understanding Ballistics Data
Before diving into the specifics of the Federal Premium 308 168 Grain Sierra MatchKing BTHP, let's briefly clarify what we mean by "ballistics." Ballistics encompasses the science of projectile motion, covering several key aspects:
- Muzzle Velocity: The speed of the bullet as it leaves the barrel. This is crucial for determining downrange energy and trajectory.
- Energy: The kinetic energy of the bullet, measured in foot-pounds (ft-lbs). Higher energy generally translates to greater impact.
- Trajectory: The path the bullet takes through the air. This is influenced by gravity, air resistance (drag), and the bullet's ballistic coefficient (BC).
- Ballistic Coefficient (BC): A measure of a bullet's ability to overcome air resistance. A higher BC means less drop and drift over long distances.
- Drop: The vertical distance the bullet falls below the line of sight at various ranges.
- Wind Drift: The horizontal deviation of the bullet due to wind.
Federal Premium 308 168 Grain Sierra MatchKing BTHP Ballistics (Approximate Values)
The following data represents approximate values based on typical barrel lengths and standard atmospheric conditions. Always refer to your specific firearm's manual and conduct your own testing for precise results in your unique shooting environment.
| Range (yards) | Muzzle Velocity (fps) | Energy (ft-lbs) | Drop (inches) | Wind Drift (inches, 10mph wind) |
|---|---|---|---|---|
| 100 | ~2700 | ~2300 | ~2 | ~4 |
| 200 | ~2500 | ~1900 | ~10 | ~15 |
| 300 | ~2300 | ~1600 | ~25 | ~35 |
| 400 | ~2100 | ~1300 | ~45 | ~60 |
| 500 | ~1900 | ~1100 | ~75 | ~90 |
| 600 | ~1700 | ~900 | ~110 | ~125 |
Important Considerations: These are estimations. Actual values can vary significantly based on factors like:
- Barrel Length: Longer barrels generally yield higher muzzle velocities.
- Altitude: Higher altitudes result in lower air density, affecting bullet trajectory.
- Temperature: Temperature influences air density and propellant burn rate.
- Humidity: Humidity impacts air density and can affect accuracy.
- Wind: Wind speed and direction are major factors affecting accuracy at longer ranges.
Sierra MatchKing: A Key Component
The Sierra MatchKing bullet is renowned for its exceptional accuracy. The boat-tail design and high-quality construction contribute to a consistent ballistic profile and superior downrange performance. The hollow-point boat tail (HPBT) design enhances stability and reduces drag, leading to flatter trajectories and tighter groupings at extended ranges.
Conclusion: Precision Demands Understanding
Understanding the ballistics of your ammunition is essential for achieving consistent accuracy in long-range shooting. While this chart provides a helpful overview of the Federal Premium 308 168 Grain Sierra MatchKing BTHP's performance, remember that real-world conditions can significantly impact results. Always practice safe firearm handling and conduct your own testing to optimize your shooting performance. Consult with experienced shooters and ballistic experts for more detailed information tailored to your specific needs and equipment.
