Quick Answer
At long distances, the 6.5 Creedmoor tends to drop less than the .270 Winchester, offering a slight advantage in terms of trajectory consistency and penetration.
Ballistic Comparison
When comparing the trajectory of the .270 Winchester and 6.5 Creedmoor at long distances, it’s essential to look at the bullets’ ballistic coefficients (BC) and sectional density. The 6.5 Creedmoor typically features a BC of around 0.55 to 0.60, while the .270 Winchester has a BC of approximately 0.48 to 0.52. This difference in BC makes the 6.5 Creedmoor more resistant to aerodynamic drag, resulting in a flatter trajectory and less bullet drop over distance.
Real-World Results
To illustrate this difference, consider a 150-grain .270 Winchester bullet (BC of 0.48) versus a 140-grain 6.5 Creedmoor bullet (BC of 0.58) fired at 2,800 feet per second. At 500 yards, the .270 Winchester bullet will drop approximately 35 inches, while the 6.5 Creedmoor bullet will drop around 25 inches. This translates to a more consistent and accurate shot placement at long distances with the 6.5 Creedmoor.
Practical Implications
For whitetail hunting, where shot opportunities often arise at longer ranges, the 6.5 Creedmoor’s superior trajectory can be a significant advantage. This is particularly true for shots beyond 400 yards, where the .270 Winchester’s drop becomes increasingly significant. While the .270 Winchester remains a capable hunting cartridge, the 6.5 Creedmoor’s flatter trajectory and better BC make it a more suitable choice for long-range engagements.
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