.300 Norma Magnum

Last updated
.300 Norma Magnum
Type Rifle
Place of originSweden
Production history
Designer Norma
Designed2012
Specifications
Parent case .338 Norma Magnum
Case typeRimless, bottleneck
Bullet diameter7.83 mm (0.308 in)
Neck diameter8.68 mm (0.342 in)
Shoulder diameter14.29 mm (0.563 in)
Base diameter14.87 mm (0.585 in)
Rim diameter14.93 mm (0.588 in)
Rim thickness1.52 mm (0.060 in)
Case length63.30 mm (2.492 in)
Overall length93.50 mm (3.681 in)
Case capacity6.75 cm3 (104.2  gr H2O)
Rifling twist229 mm (1 in 9 in)
Primer typeLarge rifle magnum
Maximum pressure (CIP)440.00 MPa (63,817 psi)
Ballistic performance
Bullet mass/typeVelocityEnergy
220 gr (14 g) MatchKing3,003 ft/s (915 m/s)4,404 ft⋅lbf (5,971 J)
Source(s): Cartridges of the World, 2012

The .300 Norma Magnum, also known as .300 NM or 300 Norma, is a centerfire magnum rifle cartridge developed by Swedish ammunition manufacturer Norma Precision. The .300 Norma Magnum uses a .338 Norma Magnum parent case necked down to .30 caliber, [1] named to differentiate it from the older .308 Norma Magnum designed in 1960, and has begun to gain popularity among long-range shooters. According to the official C.I.P. (French : Commission Internationale Permanente pour l'Epreuve des Armes à Feu Portatives) rulings, the .300 Norma Magnum can handle up to 440.00 MPa (63,817 psi) Pmax piezo pressure. [2]

Contents

The United States Special Operations Command (USSOCOM) chose the new MK22 Advanced Sniper Rifle, which is chambered in .300 Norma Magnum (designated M1163) as well as .338 Norma Magnum. [3] [4] [5]

Chambering availability

The .300 Norma Magnum chambering is offered in these factory rifles:

See also

Related Research Articles

<span class="mw-page-title-main">.338 Lapua Magnum</span> Finnish rifle cartridge

The .338 Lapua Magnum is a Finnish rimless, bottlenecked, centerfire rifle cartridge. It was developed during the 1980s as a high-powered, long-range cartridge for military snipers. Due to its use in the War in Afghanistan and the Iraq War, the cartridge has become widely available.

<span class="mw-page-title-main">Accuracy International AWM</span> Sniper rifle

The Accuracy International AWM is a bolt-action sniper rifle manufactured by Accuracy International designed for magnum rifle cartridges. The Accuracy International AWM is also unofficially known as the AWSM, which typically denotes AWM rifles chambered in .338 Lapua Magnum.

<span class="mw-page-title-main">PGM 338</span> Sniper rifle

The PGM 338, also known as the PGM .338 LM or PGM Mini-Hecate .338, is French sniper rifle from the early 1990s. It uses the .338 Lapua Magnum (8.6×70mm) cartridge, which remains supersonic up to a range of 1200–1500 m depending on the exact ammunition type and environmental conditions.

<span class="mw-page-title-main">.300 Winchester Magnum</span> Rifle cartridge

The .300 Winchester Magnum is a belted, bottlenecked magnum rifle cartridge that was introduced by the Winchester Repeating Arms Company in 1963. The .300 Winchester Magnum is a magnum cartridge designed to fit in a standard rifle action. It is based on the .375 H&H Magnum, which has been blown out, shortened, and necked down to accept a .30 caliber (7.62 mm) bullet.

<span class="mw-page-title-main">7mm Remington Magnum</span> Rifle cartridge

The 7mm Remington Magnum rifle cartridge was introduced as a commercially available round in 1962, along with the new Remington Model 700 bolt-action rifle. It is a member of the belted magnum family that is directly derived from the venerable .375 H&H Magnum. The original purpose of the belted magnum concept taken from the .300 H&H Magnum and .375 H&H Magnum, was to provide precise headspace control, since the sloping shoulders, while easing cartridge extraction, were unsuitable for this purpose. Improved cartridge extraction reliability is desirable while hunting dangerous game, in particular when a fast follow-up shot is required. The 7mm Remington Magnum is based on the commercial .264 Winchester Magnum, .338 Winchester Magnum, and .458 Winchester Magnum, which were based on the same belted .300 H&H Magnum and .375 H&H Magnum cases, trimmed to nearly the same length as the .270 Weatherby Magnum.

The .408 Cheyenne Tactical (designated 408 Chey Tac by the C.I.P. is a specialized rimless, bottlenecked, centerfire cartridge for military long-range sniper rifles that was developed by Dr. John D. Taylor and machinist William O. Wordman. The round was designed with a possible military need for a cartridge for anti-personnel, anti-sniper, and anti-materiel roles with a precision range of 2,200 yards. It is offered as a competitor to the most common military NATO long-range service cartridges such as .338 Lapua Magnum and the .50 BMG.

The Sako TRG is a bolt-action sniper rifle line designed and manufactured by Finnish firearms manufacturer SAKO of Riihimäki. It is the successor to the SAKO TR-6 target rifle, and thus the letter G within the rifle's name is meant to represent number 7.

The 6.5×47mm Lapua is a smokeless powder rimless bottlenecked rifle cartridge that was developed specifically for 300–1,000 m (328–1,094 yd) competition shooting by ammunition maker Nammo Lapua and the Swiss rifle manufacturer Grünig & Elmiger AG in 2005. Other common names for this cartridge include 6.5×47mm.

The .300 Lapua Magnum (7.62×70mm) is a rimless, bottlenecked, centerfire cartridge developed for long-range rifles. The parent case of the .300 Lapua Magnum is the .338 Lapua Magnum necked down to a smaller caliber. The .338 cartridge case was selected to withstand high chamber pressures. Combining these high pressures with smaller, lighter bullets than its parent case, .300 Lapua Magnum loadings have high muzzle velocities.

The .375 Ruger (9.5×65.5mm) is a rimless, standard-length rifle cartridge designed for hunting large, dangerous game. It is designed to provide an increase in performance over the .375 H&H cartridge within the context of a standard-length rifle action. The cartridge was designed in partnership by Hornady and Ruger. In 2007, it was released commercially and chambered in the Ruger Hawkeye African and the Ruger Hawkeye Alaskan rifles.

<span class="mw-page-title-main">.284 Winchester</span> US rifle cartridge

The .284 Winchester (7.21x55mmRB) is a rebated rim firearm cartridge, introduced by Winchester in 1963.

<span class="mw-page-title-main">6.5mm Creedmoor</span> Centerfire rifle cartridge

The 6.5mm Creedmoor (6.5×48mm), designated 6.5 Creedmoor by SAAMI, 6,5 Creedmoor by the C.I.P. is a centerfire rifle cartridge introduced by Hornady in 2007. It was developed by Hornady senior ballistics scientist Dave Emary in partnership with Dennis DeMille, the vice-president of product development at Creedmoor Sports, hence the name. The cartridge is a necked-down modification of the .30 Thompson Center.

The 7.62mm UKM [7.62×57mm] is a specialized rimless bottlenecked centerfire cartridge developed for long-range rifles. The commercially successful .338 Lapua Magnum cartridge has functioned as the parent case for the 7.62mm UKM, which is essentially a necked-down shortened version of the .338 Lapua Magnum. The .338 cartridge case was used for this since it has the capability to operate with high chamber pressures which, combined with smaller and hence lighter bullets result in high muzzle velocities.

<span class="mw-page-title-main">6.5-284 Norma</span> Swedish rifle cartridge

The 6.5-284 Norma originated as a wildcat cartridge based on the .284 Winchester cartridge necked down to 6.5 mm.

<span class="mw-page-title-main">.338 Norma Magnum</span> Rimless rifle cartridge

The .338 Norma Magnum is a cartridge first introduced in 2008 and came into production in 2009, designed by Norma of Sweden.

The Precision Sniper Rifle (PSR) was a program by United States Special Operations Command to replace all bolt-action sniper rifles in use by United States special operations snipers with a single bolt-action rifle chambered for a large caliber Magnum round such as .300 Win Mag and .338 Lapua Magnum. The solicitation was placed on January 15, 2009. The contract was awarded to the Remington Modular Sniper Rifle and was designated the Mk 21 Precision Sniper Rifle.

<span class="mw-page-title-main">Barrett MRAD</span> Sniper rifle

The Barrett MRAD is a bolt-action sniper rifle designed by Barrett to meet the requirements of the SOCOM PSR. The MRAD is based on the Barrett 98B and includes a number of modifications and improvements. The Barrett MRAD was named the 2012 Rifle of the Year by Shooting Illustrated magazine.

The .338 Ruger Compact Magnum or .338 RCM is a rimless, short-length rifle cartridge based on the .375 Ruger case. Sturm Ruger and Hornady jointly developed the round, which was released in 2008 and chambered in various Ruger rifles. The goal of the project was to produce a .338 caliber cartridge with magnum level performance that would fit in a compact, short action rifle. The .338 RCM is conceptually similar to the WSM cartridge family, but is somewhat smaller dimensionally. This often allows for a higher magazine capacity than the WSM equivalent. Like the .338 caliber cartridges which predated it, the round is designed for hunting medium to large sized North American game.

The MK 13 rifle is made using the Accuracy International Chassis System (AICS) version 2.0 mated to a long action Remington 700 receiver. The AICS 2.0 folding stock reduces the rifle's overall length by 210 mm (8.3 in) when folded and adds 0.2 kg (0.44 lb) to the rifle's total weight. The rifle has a cheekpiece design that adjusts sideways and for height for optimal cheek position when using night vision equipment or telescopic sights with large objective lenses. There is also a quick-adjust cheek-piece option that has a spring-loaded cheek-piece in conjunction with a quick-adjust butt plate. The side panels are made from a high-strength polymer and are available in the colors olive drab, dark earth or black. Sling attachment points are mounted on each side of the rifle, so it can be carried flat against the back and used comfortably by left- and right-handed users. A front attachment point is situated below the fore-end and can be used to anchor a target-style sling or replaced by an adapter for a Harris bipod.

The .375 Swiss P or 9.5×70mmRB, designated 375 Swiss P by the C.I.P., is a rebated rim, bottleneck, centerfire rifle cartridge. It was developed during the late 2010s as a high-powered, long-range cartridge for military snipers and the law enforcement sector. The loaded cartridge is 14.93 mm (0.588 in) in diameter (rim) and 93.5 mm (3.68 in) long. It can penetrate better-than-standard military body armor and has a maximum supersonic range of about 1,600 metres (1,750 yd) with C.I.P. conform FMJ factory ammunition at sea level conditions. Muzzle velocity is dependent on barrel length, seating depth, and powder charge, and varies from 860 to 870 m/s for commercial loads with 22.7-gram (350 gr) bullets, which corresponds to about 8,500 J (6,300 ft⋅lbf) of muzzle energy.

References

  1. Barnes, Frank C. (2012). Richard A. Mann (ed.). Cartridges of the World (13th ed.). p. 471. ISBN   978-1440230592.
  2. "C.I.P. TDCC datasheet 300 Norma Mag" (PDF). CIP. Archived (PDF) from the original on 22 January 2022. Retrieved 4 July 2013.
  3. "MK22 Precision Sniper Rifle (PSR)". PEO Soldier. Archived from the original on 18 May 2022. Retrieved 18 May 2022.
  4. "1305-01-669-2481 (1305-AC33, 13065024, 13072050) Data". Part Target. Archived from the original on 4 June 2022. Retrieved 3 June 2022.
  5. "ARMY - MIL-DTL-32618 (3) CONT. DIST". GlobalSpec. Archived from the original on 18 May 2022. Retrieved 18 May 2022.
  6. "TSAKO TRG M10)". 2019-11-19. Retrieved 2020-08-16.
  7. "Mjölnir 338 Lapua Semi-Automatic Rifle - S.W.O.R.D. International". 2017-04-26. Archived from the original on 2017-04-26.