6mm Musgrave

However, if 105 grain bullets are used, it is recommended that a 1-9 or even faster twist is used to stabilize the bullets. Few manufacturers specifically create 6mm Musgrave rounds, with PMP (Pretoria Metal Pressings) method. Most bullet manufacturers offer 6mm (.243") bullets that are suitable for use with rifles chambered in 6mm Musgrave.

• Name — 6mm Musgrave • Origin — South Africa • Type — Rifle • Designer — Ben Musgrave Jnr • Design Date — 1955 • Manufacturer — Musgrave • Parent —.303 British • Case Type — Rimmed, bottleneck • Bullet — 0.243 in (6mm) • Neck — 0.271 in (6.9mm) • Shoulder — 0.4008 in (10.2mm) • Base — 0.4598 in (11.68mm) • Rim Dia — 0.5378 in (13.7mm) • Rim Thick — 0.0642 in (16.3mm) • Case Length — 2.2083 in (56.1mm) / (trim length = 2.1983 in (55.84mm)) • Length — 2.8606 in (72.6mm) • Case Capacity — 49.9 • Rifling — 1-10 inches • Primer — Large rifle • Max Pressure — 46,500 • Max Cup — 45,000 • Bw1 — 80 • Btype1 — SP • Vel1 — 3120 • En1 — 1729 • Bw2 — 85 • Btype2 — SP • Vel2 — 3084 • En2 — 1795 • Bw3 — 90 • Btype3 — SP • Vel3 — 2950 • En3 — 1739 • Bw4 — 100 • Btype4 — SP • Vel4 — 2805 • En4 — 1747 • Test Barrel Length — 24" The 6mm Musgrave was a rifle cartridge invented by Ben Musgrave and introduced by Musgrave (firearms) in 1969 The cartridge's design was 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 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. Few manufacturers specifically create 6mm Musgrave rounds, with PMP (Pretoria Metal Pressings) method. Most bullet manufacturers offer 6mm (.243") bullets that are suitable for use with rifles chambered in 6mm Musgrave.