Description
In 1925 Winchester introduced a .30-06 case necked down to a bullet diameter which until then never had been used any British or other European manufacturer: .277″. The result was to become one of the most popular hunting cartridges in the world. When introduced it offered better long range performance than any other big game cartridge. It was the favorite of the late gun writer Jack O’Connor who through his writing popularized the .270 everywhere in the English speaking parts of the world. In Europe it also became widely used, but met heavy competition from the many popular 6.5mm cartridges and especially the 7×64 Brenneke. Over here it was never called by it’s metric designation – 6,9×64 – but kept it’s American name of .270 Winchester.
The success of the .270 was undoubtedly partly due to fact that it has a combination of a flat trajectory and a very manageable recoil with the standard 130GR bullet. At normal hunting ranges a well placed bullet from a .270 means instant death to all species up to the size of mule deer and many hunters prefer it for mountain hunting as respectable muzzle velocities and equivalent trajectories can be had from a 22″ or even a 20″ barrel. Whether the .270 is an elk cartridge or not has been discussed endlessly, but hunters who do intend to use the .270 Win on these species are recommended to use bullets in the 150-160GR range in order to ensure sufficient penetration. With 100GR bullets the .270 is also a fine varmint cartridge, although not intended to be when originally designed.
Specifications
Application: Hunting
Caliber: 270 Win
Bullet Weight: 130GR
Ballistic Coefficient (G1): 0.359
MrdImp: 207
Quantity: 20rd per Box
Test Barrel
| Velocity (FPS) | Energy (ft/lb) | Wind (Inches) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| V0 | V100 | V200 | V300 | E0 | E100 | E200 | E300 | 100 yd | 200 yd | 300 yd |
| 3051 | 2780 | 2525 | 2285 | 2687 | 2231 | 1840 | 1507 | 0.8″ | 3.4″ | 8.1″ |
Zero Range, Yards
Height of trajectory above line of sight if sighted in a X yards. For sights 40mm above bore.
| Zero Range | 50 yd | 100 yd | 150 yd | 200 yd | 300 yd |
| 50 | 0.6 | 0 | -1.7 | -9.5 | |
| 100 | -0.3 | -0.8 | -2.9 | -11.2 | |
| 150 | 0 | 0.5 | -1.8 | -9.6 | |
| 200 | 0.4 | 1.4 | 1.3 | -6.9 |






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