.25-06 Remington
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The .25-06 Remington was a
wildcat cartridge A wildcat cartridge, often shortened to wildcat, is a custom-made cartridge (weaponry), cartridge for which ammunition and/or firearms are not mass-produced. These cartridges are often created as experimental variants to optimize a certain ballis ...
for nearly half a century before finally being standardized by Remington in 1969. Its design was based on the .30-06 Springfield cartridge necked-down (case opening made narrower) to .257 caliber keeping a similar cartridge length of its parent case, thus being chambered in standard-length actions. Nominal bullet diameter is 0.257 in, and bullet weights range from .


History

Charles Newton necked down the .30-06 Springfield cartridge in 1912 to accept a 117-grain .25-35 Winchester bullet, but the resulting .256 Newton cartridge did not catch on. Newton's early modification encouraged commercial release of a shortened case (from 63 to 49 mm) as the .250-3000 Savage in 1915.
Frankford Arsenal The Frankford Arsenal is a former United States Army ammunition plant located adjacent to the Bridesburg neighborhood of Northeast Philadelphia, Pennsylvania, north of the original course of Frankford Creek. History Opened in 1816 on of lan ...
developed an experimental .25-06 during
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; and distribution of surplus United States military equipment through the
Civilian Marksmanship Program The Civilian Marksmanship Program (CMP) is a national organization dedicated to training and educating U.S. citizens in responsible uses of firearms and airguns through gun safety training, marksmanship training, and competitions. The CMP is a f ...
following the war encouraged independent gunsmiths to experiment with the cartridge. A. O. Niedner of
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, introduced rifles for the .25 Niedner in 1920. Niedner Arms Corporation retained the 17° 30 .30-06 shoulder chambering .25 caliber barrels rifled with one twist in . Similar cartridges were identified as the .25 Hi-Power, .25 Whelen (analogous to .35 Whelen), or .25-100-3000 (to indicate the ability to achieve 3,000 feet-per-second with a 100-grain bullet rather than the 87-grain bullet used in the .250-3000 Savage). Greater case capacity offered minimal velocity improvement over the .250-3000 Savage case with contemporary
smokeless powder Finnish smokeless powder Smokeless powder is a type of propellant used in firearms and artillery that produces less smoke and less fouling when fired compared to black powder. Because of their similar use, both the original black powder formula ...
s. Availability of
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's
Improved Military Rifle (IMR) Improved military rifle propellants are tubular nitrocellulose smokeless powder, propellants evolved from World War I through World War II for loading military and commercial ammunition and sold to civilians for reloading rifle ammunition for huntin ...
powders encouraged commercial release of the .257 Roberts using the 57 mm
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case in 1934. Release of IMR 4350 in 1940 and availability of surplus 4831 powder salvaged from
Oerlikon 20 mm cannon The Oerlikon 20 mm cannon is a series of autocannons based on an original German Becker Type M2 20 mm cannon design that appeared very early in World War I. It was widely produced by Oerlikon Contraves and others, with various models empl ...
cartridges after
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greatly improved performance of the full-length .25-06 case..25-06 Remington
data from Accurate Powder


Performance

Most .25-caliber bullets have high ballistic coefficients without being heavy, which, combined with the large case capacity of its parent .30-06 case, allows relatively high muzzle velocities without heavy recoil. The combination of high ballistic coefficients with high muzzle velocities gives the .25-06 a very flat trajectory as well as retaining kinetic energy down-range. The cartridge is capable of propelling a 117 grain (7.6 g) bullet at up to 3,200 feet per second (980 m/s) and energy levels up to . Bullets lighter than 75 grains are available in .257 caliber but were designed for the smaller .25-20 Winchester and .25-35 Winchester cartridges and are too lightly constructed for the high velocities of the .25-06. The cartridge has less felt recoil than a .30-06 in a similar-weight rifle, due to the lighter-weight bullets used. Shooters who are recoil sensitive will find the recoil from the .25-06 easier on the shoulder, contributing to good shot placement. This cartridge is not quite as powerful as the .257 Weatherby Magnum, usually running slower with a given bullet weight, but almost 200 ft/s faster than the .257 Roberts at its hottest loads (i.e. .257 Roberts +P).
SAAMI The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI, pronounced "Sammy") is an association of American manufacturers of firearms, ammunition, and components. SAAMI is an accredited standards developer that publishes several A ...
pressure limit for the .25-06 is 63,000
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.


Sporting uses

The .25-06 is generally considered to be a good round for medium-sized game such as deer and antelope because of its combination of substantial kinetic energy and moderate recoil. The addition of a flat trajectory makes it particularly popular in open terrains such as plains and mountains, where longer-range shots on game are not seldom, since its flat trajectory forgives range-estimation errors up to 300 yards if sighted to its maximum point blank range. Bullets of different weights and construction make the .25-06 Remington a fine alternative for hunting species ranging from prairie dogs and coyotes to mid-sized deer and sheep. Although capable of taking heavier game such as elk, many hunters prefer a larger caliber and a heavier bullet for larger species. Bullets range from lightly constructed 75-grain bullets with muzzle velocities in the 3,700 ft/s (1,130 m/s) range to more robust 120-grain bullets with muzzle velocities in the 3,000 ft/s (915 m/s) range. Most manufacturers of
bolt-action Bolt action is a type of manual Action (firearms), firearm action that is operated by ''directly'' manipulating the bolt (firearms), turn-bolt via a cocking handle, bolt handle, most commonly placed on the right-hand side of the firearm (a ...
or
single-shot In firearm designs, the term single-shot refers to guns that can hold only a single round of ammunition inside and thus must be reloaded manually after every shot. Compared to multi-shot repeating firearms ("repeaters"), single-shot designs have ...
rifles offer the .25-06 as a standard chambering and factory loaded ammunition is available from Remington,
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, Federal Cartridge and most other major manufacturers.


See also

*
List of rifle cartridges List of rifle cartridges, by primer type, Caliber, calibre and name. File:Cartridge Sample 2.jpg, 350px, From left to right: 1 .17 Hornady Mach 2, 2 .17 Hornady Magnum Rimfire, 3 .22 Long Rifle, 4 .22 Winchester Magnum Rimfire, 5 .17/23 SMc, 6 5mm ...
*
Table of handgun and rifle cartridges This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name. Data values are the highest found for the cartridge, and might not occur in the same load (e.g. the highest muzzle energy might not be in the same ...
* .250-3000 Savage * .25 WSSM * .257 Roberts * .257 Weatherby Magnum * .30-06 Springfield wildcat cartridges * 6 mm caliber * Delta L problem *
Sectional density Sectional density (often abbreviated SD) is the ratio of an object's mass to its cross sectional area with respect to a given axis. It conveys how well an object's mass is distributed (by its shape) to overcome resistance along that axis. Secti ...


References

* ''Hornady Handbook of Cartridge Reloading vol I, Sixth Edition''; Book by Hornady Mfg Co., 2003 p. 233


External links

{{DEFAULTSORT:25-06 Remington Pistol and rifle cartridges Remington Arms cartridges Wildcat cartridges