Quick Answer
To maximize penetration with big game loads, use controlled expansion bullets with a higher sectional density, such as the Barnes TSX or the Hornady GMX, and consider using a bullet with a longer ogive for better penetration. A slower burning powder is also recommended to reduce recoil and ensure accurate shot placement. Optimal bullet weight and caliber will also greatly impact penetration.
Choosing the Right Bullet
When selecting a controlled expansion bullet, consider the caliber and weight of the bullet. A heavier bullet typically results in deeper penetration, but may not expand as well as a lighter bullet. For example, in a .30-06, a 150-grain bullet may penetrate deeper than a 150-grain bullet in a .308, but the smaller diameter of the .308 may result in a larger wound channel. The optimal weight and caliber will depend on the type of game being hunted.
Powder Selection
A slower burning powder is recommended to reduce recoil and ensure accurate shot placement. Powders with a burn rate of 40-50 grains of powder per second are ideal for big game hunting. Examples of slow burning powders include IMR 7828 and H1000. These powders provide a consistent and controlled burn, which helps to ensure accurate shot placement and penetration.
Optimal Load Settings
Aim for a muzzle velocity of 2,500-2,800 feet per second when loading a controlled expansion bullet. This velocity range allows for optimal penetration and expansion. A bullet with a longer ogive, such as the Barnes TSX, may require a slightly slower burn rate to achieve optimal penetration. Consider consulting a reloading manual or seeking the advice of a experienced reloader to determine the optimal load settings for your specific rifle and bullet combination.
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