Quick Answer
To choose the right ammunition for .338 Lapua, consider the intended use, such as hunting or long-range shooting, and select a load that matches the velocity and energy requirements. Look for ammunition with a consistent and high BC (ballistic coefficient) for optimal performance at long ranges. Factory ammunition from reputable manufacturers is often a good starting point.
Understanding the Requirements
When selecting .338 Lapua ammunition, it’s essential to understand the intended use. For hunting, a heavier bullet with a BC around 0.5-0.6 and a muzzle velocity of 2800-2900 ft/s is suitable. For long-range shooting, a lighter bullet with a higher BC (around 0.8-0.9) and a muzzle velocity of 2900-3000 ft/s is preferred. This allows for better expansion and penetration at longer ranges.
Choosing the Right Load
Reputable manufacturers such as Norma, Lapua, and Federal offer a range of .338 Lapua loads. Look for factory ammunition with consistent weight and velocity tolerances. A 300-grain bullet with a BC of 0.6 and a muzzle velocity of 2850 ft/s is a good starting point. When handloading, use a powder such as H1000 or RL22 to achieve the desired velocity and BC. A maximum pressure of 55,000-60,000 psi is recommended.
Considerations for Long-Range Shooting
For long-range shooting, consider the effect of wind deflection on the bullet. A bullet with a higher BC will be less affected by wind, but may be more sensitive to temperature changes. Use a ballistic calculator such as the Kestrel or Ballistic App to determine the effects of wind, temperature, and elevation on the bullet’s trajectory. This will help you choose the right ammunition and adjust your aiming point accordingly.
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