700 Nitro Express Ammo
With a metric designation of 17.8 × 89mmR, the 700 Nitro Express Ammo has its origin in the United Kingdom. It is a big game rifle cartridge. It was developed in 1988 by Jim Bell and William Feldstein and built and produced by Holland and Holland, a British company in London. Feldstein had tried getting a .600 nitro ammo made for him, but H&H had ceased production. So he and Jim Bell went on to design the .700 Nitro Express Ammo, and it attracted the interest of Holland and Holland.
The 700 Nitro Express Ammo has no parent case, a bullet diameter of 0.700 inches (17.8mm), and a rim diameter of .890 inches (22.6mm). Its overall length is 4.20 inches (107mm), and it is straight-rimmed with a rim thickness of .060 inches.
It is called a big game rifle because the 700 Nitro Express Ammo was designed to take down mammoth animals like elephants, rhinos, hippos, and their likes. It is one of the world's biggest and strongest big game cartridges ever produced. It is the world's largest double rifle and weighs 1000 grains.
It is effective ammunition to use in practicing long-range marksmanship. The 700 Nitro Express ammo can deliver roughly 53,450 joules of force to the human body and can dislocate the shoulders. While it is hard to find and usually has to be made on request, the 700 Nitro Express ammo is one of a kind and should convey that the expense is worth it.