What are some popular double rifle calibers for elephants?

1. .458 Winchester Magnum: A classic big-bore cartridge known for its effectiveness on large, dangerous game, including elephants.

2. .470 Nitro Express: A powerful and versatile double rifle caliber well-suited for elephants due to its penetration capability.

3. .500 Jeffery: A renowned elephant cartridge that offers excellent stopping power and deep penetration.

4. .505 Gibbs: Another excellent choice for elephant hunting, delivering comparable performance to the .470 Nitro Express.

5. .577 Nitro Express: A traditional and iconic elephant hunting caliber popular for its impressive striking power and ability to take down large animals.

The specific choice of caliber may vary depending on the hunter's preference and experience, the region where the hunt is taking place, and the particular situation encountered during the hunt.