Interwar replacement for the 8x50mmR Mannlicher, adopted to convert existing M1895 straight-pull rifles to a more powerful cartridge. Hungary's standard rifle cartridge through WWII in the Mannlicher M1935 and M1943 rifles.
Type: Rifle
Introduced: 1930, Austria
Parent case: 8x50mmR Mannlicher (modified)
Standardization: CIP
Bullet diameter: 0.329" (8.35 mm)
Case length: 2.205" (56.01 mm)
Overall length: 3.071" (78 mm)
Max pressure: 52,000 PSI
Rim type: Rimmed
Primer: Large Rifle
Typical twist rate: 1:10
Muzzle velocity: 2230–2395 fps
Muzzle energy: 2294–2648 ft-lbs
Effective range: 600 yd
Common bullet weights: 208, 244 gr
Primary use: Military, Hunting
Production status: Active
Also known as: 8x56mmR Hungarian · 8x56R Mannlicher · .330 Austrian
History: Developed in the early 1930s to upgrade the aging Austro-Hungarian Mannlicher M1895 rifles to a more powerful cartridge. The new case was longer and used a larger-diameter bullet, requiring a barrel liner conversion on M1895 rifles. Hungary adopted it as the standard rifle cartridge and fielded it through WWII. Hungarian military surplus ammunition in 8x56mmR is the most commonly encountered…
Notable firearms: Mannlicher M1895 (converted), Hungarian M1935 Mannlicher, Hungarian M1943 Mannlicher
Military use: Austria, Hungary
Similar cartridges: 8x50mmR Mannlicher, 8x57 JRS, 7.92x57mm Mauser