The .270 Winchester (6.8×65mm) is an intermediate rifle cartridge, based upon the .30-06 Springfield cartridge.
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| - The .270 Winchester (6.8×65mm) is an intermediate rifle cartridge, based upon the .30-06 Springfield cartridge.
- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | .270 Winchester |- | colspan="3" style="text-align: center; font-size: 90%; border-bottom: 1px solid #aaa; line-height: 1.25em;" | Image:100G115G130G150G.jpgLeft to Right 100 grain - Hollow Point, 115 grain FMJBT, 130 grain Soft point, 150 grain round nose. |- ! style="padding-right: 1em;" | Type | colspan="2" | Rifle / Hunting |- ! style="padding-right: 1em;" | Place of origin | colspan="2" | Image:Flag of the United States.svg United States |- |- |- |- | Production history |- | Specifications mm ) mm ) mm ) mm )
- The .270 Winchester (or 6.9x64mm) was developed by Winchester Repeating Arms Company in 1923 and unveiled in 1925 as a chambering for their bolt-action Model 54. The cartridge is based upon the .30-03. When loaded with a bullet that expands rapidly or fragments in tissue, this cartridge delivers devastating terminal performance.
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| BW
| - 90(xsd:integer)
- 130(xsd:integer)
- 140(xsd:integer)
- 150(xsd:integer)
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- 2644(xsd:integer)
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- 2706(xsd:integer)
- 2748(xsd:integer)
- 2955(xsd:integer)
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| - Left to Right - Hollow Point, FMJBT, Soft point, round nose.
- Left to Right 100 grain - Hollow Point, 115 grain FMJBT, 130 grain Soft point, 150 grain round nose.
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| - 2850(xsd:integer)
- 2916(xsd:integer)
- 3060(xsd:integer)
- 3085(xsd:integer)
- 3200(xsd:integer)
- 3603(xsd:integer)
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| abstract
| - The .270 Winchester (or 6.9x64mm) was developed by Winchester Repeating Arms Company in 1923 and unveiled in 1925 as a chambering for their bolt-action Model 54. The cartridge is based upon the .30-03. When loaded with a bullet that expands rapidly or fragments in tissue, this cartridge delivers devastating terminal performance. The .270 Winchester became a very popular deer and elk cartridge due to the widespread praises of gunwriter Jack O'Connor who used the cartridge for 40 years and espoused its praise in the pages of Outdoor Life. Driving a -grain (g) bullet at approximately 3140 ft/s (957 m/s), (later reduced to 3060 ft/s (933 m/s)) the cartridge demonstrated high performance at the time of its introduction and was marketed as being suitable for long range shooting (400-1000 yards) on most big game. Two additional bullet weights were soon introduced: a -grain ( g) hollow-point bullet for varmint shooting, and a -grain ( g) bullet for larger deer, elk and moose in big-game hunting. While not an immediate success, over the succeeding decades and especially in the post-World War II period, the .270 Winchester attained great popularity among gun owners and hunters, ranking it among the most popular and widely used cartridges worldwide. Internationally, firearms manufacturers now offer this chambering in all firearm varieties: bolt-actions, single-shots, lever-actions (such as Browning BLR), pump-actions (such as Remington 7600), autoloaders (such as Remington 7400) and even a few double rifles.
- The .270 Winchester (6.8×65mm) is an intermediate rifle cartridge, based upon the .30-06 Springfield cartridge.
- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | .270 Winchester |- | colspan="3" style="text-align: center; font-size: 90%; border-bottom: 1px solid #aaa; line-height: 1.25em;" | Image:100G115G130G150G.jpgLeft to Right 100 grain - Hollow Point, 115 grain FMJBT, 130 grain Soft point, 150 grain round nose. |- ! style="padding-right: 1em;" | Type | colspan="2" | Rifle / Hunting |- ! style="padding-right: 1em;" | Place of origin | colspan="2" | Image:Flag of the United States.svg United States |- |- |- |- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Production history |- ! style="padding-right: 1em;" | Designer | colspan="2" | Winchester Repeating Arms Company |- ! style="padding-right: 1em;" | Designed | colspan="2" | 1923 |- ! style="padding-right: 1em;" | Manufacturer | colspan="2" | Winchester |- ! style="padding-right: 1em;" | Produced | colspan="2" | 1925-Present |- |- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Specifications |- ! style="padding-right: 1em;" | Parent case | colspan="2" | .30-06 |- |- ! style="padding-right: 1em;" | Bullet diameter | colspan="2" | in (mm ) |- ! style="padding-right: 1em;" | Neck diameter | colspan="2" | in (mm ) |- ! style="padding-right: 1em;" | Shoulder diameter | colspan="2" | in (mm ) |- ! style="padding-right: 1em;" | Base diameter | colspan="2" | in (mm ) |- ! style="padding-right: 1em;" | Rim diameter | colspan="2" | in (mm ) |- |- ! style="padding-right: 1em;" | Case length | colspan="2" | in (mm ) |- ! style="padding-right: 1em;" | Overall length | colspan="2" | in (mm ) |- |- ! style="padding-right: 1em;" | Rifling twist | colspan="2" | 1-10 |- ! style="padding-right: 1em;" | Primer type | colspan="2" | Large rifle |- |- |- |- |- |- |- ! colspan="3" style="background: lightsteelblue; text-align: center; vertical-align: middle;" | Ballistic performance |- style="text-align: center; font-size: 90%; background: #DEDEDE;" cellspacing="0" cellpadding="0" ! Bullet weight/type ! Velocity ! Energy |- style="text-align: center; font-size: 90%;" | style="vertical-align:middle; border-bottom: 1px dotted #aaa; " | gr (g) HP||style="border-bottom: 1px dotted #aaa; "| ft/s (m/s) ||style="border-bottom: 1px dotted #aaa; "| ft·lbf (J) |- style="text-align: center; font-size: 90%;" | style="vertical-align:middle; border-bottom: 1px dotted #aaa; " | gr (g) SP||style="border-bottom: 1px dotted #aaa; "| ft/s (m/s) ||style="border-bottom: 1px dotted #aaa; "| ft·lbf (J) |- style="text-align: center; font-size: 90%;" | style="vertical-align:middle; border-bottom: 1px dotted #aaa; " | gr (g) SP||style="border-bottom: 1px dotted #aaa; "| ft/s (m/s) ||style="border-bottom: 1px dotted #aaa; "| ft·lbf (J) |- style="text-align: center; font-size: 90%;" | style="vertical-align:middle; border-bottom: 1px dotted #aaa; " | gr (g) SP||style="border-bottom: 1px dotted #aaa; "| ft/s (m/s) ||style="border-bottom: 1px dotted #aaa; "| ft·lbf (J) |- style="text-align: center; font-size: 90%;" |- | colspan="3" style="text-align: center; padding-top: 5px; font-size: 90%;" | Source: Hodgdon |} The .270 Winchester was developed by Winchester Repeating Arms Company in 1923 and unveiled in 1925 as a chambering for their bolt action Model 54. The cartridge is based upon the .30-06 Springfield, and the case is slightly longer due to the necking down process. Driving a bullet at approximately 3140 ft/s (957 m/s), (later reduced to 3060 ft/s (933 m/s)) the cartridge demonstrated high performance at the time of its introduction and was marketed as being suitable for long range shooting on most big game. Two additional bullet weights were soon introduced: a -grain (g ) hollow point bullet for Varmint shooting, and a -grain (g ) bullet for larger deer, elk and moose in North American hunting. While not an immediate success, over the succeeding decades and especially in the post WW2 period, the .270 Winchester has attained great popularity among gun owners and hunters, ranking it among the most popular and widely used cartridges worldwide. Internationally, firearms manufacturers now offer this chambering in all firearm varieties: bolt actions, single-shots, lever-actions (such as Browning BLR), Pump-actions (such as Remington 7600), autoloaders (such as Remington 7400) and even a few double rifles.
- The .270 Winchester (or 6.9x64mm) was developed by Winchester Repeating Arms Company in 1923 and unveiled in 1925 as a chambering for their bolt-action Model 54. The cartridge is based upon the .30-03. When loaded with a bullet that expands rapidly or fragments in tissue, this cartridge delivers devastating terminal performance. The .270 Winchester became a very popular deer and elk cartridge due to the widespread praises of gunwriter Jack O'Connor who used the cartridge for 40 years and espoused its praise in the pages of Outdoor Life. Driving a bullet at approximately 3140 ft/s (957 m/s), (later reduced to 3060 ft/s (933 m/s)) the cartridge demonstrated high performance at the time of its introduction and was marketed as being suitable for long range shooting (400-1000 yards) on most big game. Two additional bullet weights were soon introduced: a hollow-point bullet for varmint shooting, and a bullet for larger deer, elk and moose in big-game hunting. While not an immediate success, over the succeeding decades and especially in the post-World War II period, the .270 Winchester attained great popularity among gun owners and hunters, ranking it among the most popular and widely used cartridges worldwide. Internationally, firearms manufacturers now offer this chambering in all firearm varieties: bolt-actions, single-shots, lever-actions (such as Browning BLR), pump-actions (such as Remington 7600), autoloaders (such as Remington 7400) and even a few double rifles.
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