8×50mmR Mannlicher
This articleneeds additional citations forverification.(August 2021) |
8×50mmR Mannlicher | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | ||||||||||||
Type | Rifle cartridge | |||||||||||
Place of origin | Austria-Hungary | |||||||||||
Service history | ||||||||||||
Used by | Austria-Hungary Kingdom of Bulgaria Kingdom of Italy | |||||||||||
Wars | World War I World War II | |||||||||||
Production history | ||||||||||||
Designed | 1890 (M. 90) | |||||||||||
Specifications | ||||||||||||
Parent case | 8×52mmR Mannlicher | |||||||||||
Case type | Rimmed,bottleneck | |||||||||||
Bullet diameter | 8.22 (C.I.P.) | |||||||||||
Land diameter | 7.95 mm (0.313 in) | |||||||||||
Neck diameter | 9.03 mm (0.356 in) | |||||||||||
Shoulder diameter | 12.01 mm (0.473 in) | |||||||||||
Base diameter | 12.48 mm (0.491 in) | |||||||||||
Rim diameter | 14.11 mm (0.556 in) | |||||||||||
Rim thickness | 1.38 mm (0.054 in) | |||||||||||
Case length | 50.38 mm (1.983 in) | |||||||||||
Overall length | 76.21 mm (3.000 in) | |||||||||||
Ballistic performance | ||||||||||||
| ||||||||||||
Test barrel length: 30 |
TheAustro-Hungarian8×50mmR Mannlicheror8×50mmR M93is a servicecartridgedating back to the days of semi-smokeless powder. It was later replaced by (and many weapons were rechambered for) the8×56mmRcartridge.[citation needed]
History[edit]
M90[edit]
In approximately 1890, theAustro-Hungarian Empireconverted the older,black powderfilled8×52mmR Mannlicherround into a semi-smokeless cartridge, following upon the heels of France's8 mm Lebelcartridge, the first smokeless military round. This new round was designated8mm M.1890 scharfe Patroneor "nitro-Patrone". It was loaded with the same 244 gr bullet but carried a 43 gr charge of "Gewehrpulver" ( "rifle powder", Austria-Hungary's name for their version of smokeless powder, which was actually a "semi-smokeless" powder[citation needed]). The new semi-smokeless loading pushed the bullet to a velocity of 1,950 ft/s (590 m/s) in the convertedM.88/90andM.86/90Mannlicher rifles.
M93[edit]
Upon perfection of a completely smokeless powder by the Austro-Hungarians in 1893, the loading was again updated and thus re-designated as the "8mm M.1893 scharfe Patrone". It used the same bullet as the two previous loadings with a 43 gr charge of the new Gewehrpulver M.1892. This improved ballistics slightly, which had been about 200 ft/s (61 m/s) less out of the "repetier-carabiner"Mannlicher M1890 Carbine,to 2,035 ft/s (620 m/s) out of theM.88/90and laterMannlicher M1895Rifles.
Current use[edit]
TheIOF.315 Sporting Rifleuses this cartridge under the title of.315(also.315 Indian).
The 8×50mmR Mannlicher cartridge has a long history of sporting use in India, as it was a simple matter to modify the Lee–Enfield action to accommodate the 8×50mmR in place of the.303 inch cartridge,thus providing a solution to theBritish colonial administration's 1907 banon civilians possessing rifles chambered in British military calibres while offering a cartridge of similar capabilities.
British gunmakers BSA produced sporting versions of the Lee–Enfield military rifle, chambered in "8mm (.315" ) "from well before World War I until at least the 1930s. The British-founded" Rifle Factory Ishapore "continues to manufacture Lee–Enfield sporting rifles in this chambering.
Handloading[edit]
Reloadable cartridge cases can be produced by reforming and trimming8×56mmRMannlicher or7.62×54mmRMosin–Nagant Russian brass. Standard.323 "8mm S-bullets are correct for this caliber though best results are obtained from open-base bullets that can expand to fit the.329" bore.RCBSoffers both reforming and reloading dies.
When reloading for "wedge-lock" Mannlicher rifles such as the M.88, M.86/88, M.86/90 or M.88/90 chamber pressures should be kept low for safety. Rifles such as the Mannlicher M.95 using a stronger rotating-bolt design can be loaded to higher pressures.
References[edit]
- "8 x 50 R Mannlicher - MUNICION.ORG".municion.org.Archived fromthe originalon July 5, 2013.RetrievedFebruary 14,2013.