The .416 Rigby is a rifle cartridge designed in 1911 by London based gunmaker John Rigby & Company, for hunting dangerous game. It is the first cartridge to use a bullet of .416 inch (10.57 mm) diameter.
Using a rimless design, with a steep 45-degree shoulder for good head spacing, Rigby found the optimum formula, with a 410-grain bullet propelled at 2390 fps, for just over 5,000 ft.-lbs. of energy, and it soon developed an excellent reputation for deep penetration on all big game animals, including elephant. The high sectional density values of the 410-grain bullet (0.338) and even the modern 400-grain bullet (0.330) guarantee that the solids will reach the brain of the biggest bull elephant and the soft points would give excellent penetration, destroying vital tissue and putting dangerous game down fast. As Reloading Solutions Limited has no control over improper storage, handling, loading or use of Vihtavuori powders after they have left our facility, we make no warranty of any kind, either expressed or implied, limited or full. We specifically disclaim all warranties of fitness for a particular purpose and merchantability. We specifically disclaim all liability for consequential damages of any kind whatsoever, whether or not due to seller’s negligence or based on strict product liability or principle of indemnity or contribution, Reloading Solutions Limited neither assumes nor authorises any person to assume for it any liability in connection with the use of this product.