Quick Answer
Impact of Caliber on Trajectory and Velocity in Double Rifles is critical for effective hunting, particularly when facing large game like elephants and rhinos. A larger caliber typically offers better penetration and expansion, but may sacrifice accuracy and velocity at longer ranges. In double rifles, the trade-off between caliber and trajectory must be carefully considered.
Choosing the Right Caliber
When selecting a caliber for a double rifle, consider the size of the game you intend to hunt. For smaller game like antelope and deer, a .375 caliber or smaller may be sufficient. However, for larger game like elephant and rhino, a .416 caliber or larger is often preferred. A .416 Rigby, for example, can deliver a 400-grain bullet at 2,200 feet per second, providing adequate velocity and penetration for most large game.
Ballistic Performance and Trajectory
Double rifles typically fire solid bullets, which offer better penetration and expansion than hollow-point bullets. The ballistic performance of a double rifle is heavily influenced by the caliber, bullet weight, and barrel length. A longer barrel can improve muzzle velocity and accuracy, but may also increase recoil and weight. For example, a .416 Remington Magnum with a 24-inch barrel can deliver a 400-grain bullet at 2,400 feet per second, while a .375 H&H with a 20-inch barrel may deliver a 300-grain bullet at 2,200 feet per second. When hunting at longer ranges, a more aerodynamic bullet with a longer ogive and smaller meplat can improve accuracy and reduce wind deflection.
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