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While it is true that a .270 Winchester case can be formed from a .30-06 Springfield case, the case length of a .30-06 is 63.3 millimetres (2.494 in) while the case length of a .270 is 64.5 millimetres (2.540 in). However, the brass of a .30-06 case will often stretch, or lengthen, past the dimension of the .30-06 case when necked down to form ...
270 Winchester necked down to a .243 bullet with the angle increased to 35 degrees - The 270 Winchester is a standardized cartridge of the same design as the 30-06 except the case is 1.2mm longer and necked down to the .270 caliber.
In 1925, Winchester introduced the .270 Winchester, previously known as the .270 WCF, based on the 30-03 Springfield case necked down to .277" (6.8 mm). Although the .270 Winchester was not an instant success, within a few decades it became one of the most popular big game hunting cartridges for mid sized game worldwide, because of its relatively mild recoil and flat trajectory within ...
The .30-06 Springfield cartridge case can hold 68.2 grains and has a volume of 4.42 millilitres (0.270 in 3). The exterior shape of the case was designed to promote reliable case feeding and extraction in bolt-action rifles and machine guns alike, under extreme conditions. [citation needed].30-06 Springfield maximum C.I.P. cartridge dimensions.
.25 Winchester Super Short Magnum.250 Savage.25-06 Remington.25-20 Winchester.25-35 Winchester.25-45 Sharps.297/250 Rook.250-3000 Savage.255 Jeffery Rook.256 Gibbs Magnum.256 Newton.256 Winchester Magnum.257 Roberts.257 Weatherby Magnum.26 Nosler.260 Remington.264 LBC-AR.264 Winchester Magnum.270 Weatherby Magnum.270 Winchester
The .30-06 produces more energy than the .280 with bullets heavier than 180 grains, though .284" 175-grain bullets have a high sectional density of .310, compared to the 30-06 180-grain bullet with a moderate sectional density of .271. The .280 is suitable for hunting any game in North America with good shot placement.
The Sporting Rifle was originally offered in .225 Winchester, .243 Winchester, .270 Winchester, .308 Winchester, and the .30-06 Springfield. [5] In 1969 the 308 Win. was dropped from production, and by 1970 only the 243 Win, 270 Win, and 30-06 Sprg were offered. Again in 1971 chamberings were reduced to only the 243 Win and 30-06 Sprg.
A .308 Winchester necked down to 7 mm (.284 caliber), the 7 mm-08 provides a flatter trajectory with lighter, more aerodynamic 7 mm bullets. [14] 7-30 Waters. Designed to improve the performance of lever-action rifle designs dating back to the 1890s, the 7-30 Waters is a .30-30 Winchester necked down to 7 mm (.284 caliber). Even with the lower ...