6mm Musgrave

The 6mm Musgrave was a rifle cartridge invented by Ben Musgrave and introduced by Musgrave in 1969

The cartridge's design is based on necking down the .303 British, with the original intent of it being a Springbok caliber for hunting on open plains in South Africa's Karoo, Kalahari and Namakwaland. It also served as a modern cartridge suitable for converting many old Lee-Enfields with worn out .303 barrels.

Like the .243 Winchester, it has a fast rifle twist of 1-10 inches. However, if 105 grain bullets are used, it is recommended that a 1-9 or even faster twist is used to stabilize the bullets.

Very few manufacturers specifically create 6mm Musgrave rounds, with PMP (Pretoria Metal Pressings) method. However, many South African distributors have the ammunition in stock.

Most bullet manufacturers offer 6mm (.243") bullets that are suitable for use with rifles chambered in 6mm Musgrave.