Cartridge .300 Remington Ultra Magnum / 7.6×72

Remington .30-06 Springfield Ammo

Only a few reputable ammunition manufacturers produce finished .30-06 Spr cartridges. factory equipment, with a bullet whose mass reaches more than 14 grams. These cartridges are produced exclusively for experienced hunters and some conservatives. To explain this, let's first look at the design of some of the Remington bullets used in the .30-06 caliber.

Accu Tip Boat Tail bullets have a high BC (ballistic coefficient) (depending on weight, the coefficient will be 0.415-0.480) and are used for shooting from long distances. Such bullets perfectly retain energy and speed at a distance of up to 500 meters. The bullet has a flat trajectory, and the 150-grain bullet is capable of minimally reducing the point of impact (minus 111 centimeters at a distance of five hundred meters when zeroing in at “0” at a distance of 200 meters), by three centimeters second only to a bullet of the same weight from the Swift Scirocco Bonded. The core material of the Accu Tip bullet is harder than its analogues, and the bullet jacket is relatively thick, so when the bullet hits the target, the best deformation pattern is achieved. This is also facilitated by the polymer ballistic tip. Such a bullet can stop a medium-sized animal, for example, wapiti, fallow deer, deer, medium-sized wild boar.

Bullets, for example, SwiftA-Frame PSP with Premier series cartridges have a rather interesting design, thanks to which good performance is achieved.

A-Frame is a designation that describes an A-shaped cross-sectional configuration of a multi-wall shell with a lintel at the center. The bullet core is made of lead and consists of two parts that are not connected to each other and are mounted on different sides into the shell. Both lobes of the core, when hitting the target, “wander on their own,” thus ensuring reliable detection even at a long distance and with a significant loss of speed, and also guaranteeing at high speeds a sufficient stopping effect when hitting at a short distance without damaging the trophy. As soon as the bullet hits the target, it expands, its diameter becomes twice the size of the caliber itself, while the weight of the bullet is retained up to 95%. Once on target, the bullet works well from any angle. Remington produces .30-06 cartridges with the Swift A-Frame PSP bullet, which weighs 180 grains (or 11.7 g, and has a ballistic coefficient of 0.377). With such bullets you can go after elk and bear. The bullet retains its energy well along the trajectory and decreases moderately (typical of the .30-06 caliber) (minus 138 centimeters at a distance of five hundred meters when zeroing in at “0” at a distance of 200 meters).

The Core-Lokt SP is a 14.3 g (or 200 grain) heavy, blunt-point bullet with a ballistic coefficient of 0.294. Its classic semi-shell design looks archaic compared to its modern “colleagues”. The popularity of this bullet is quite high, and this despite the fact that it significantly loses speed at distances greater than 150-200 meters, that is, a cartridge with such a bullet has a relative short-range punch. The popularity of this bullet is explained by the optimal combination of lethal action and moderate cost. For example, in Russia Reimington cartridges of .30-06 Springfield caliber with a Core-LoktSP bullet cost from 55 rubles. But we should not forget that in Russia pricing can be influenced not only by objective factors. In this case, the cost will depend on the region, but if the requested cost exceeds 100 rubles, then we can say that this is an unfair price for 90% of the territory of Russia.

The low price of cartridges is explained, first of all, by the manufacturability and simplicity of the bullet itself. The effectiveness of a bullet against an animal is achieved through the operation of a correctly calculated and practically proven “glass” design in the front part with an exposed core, together with the maximum possible mass of the projectile, and not due to a combination of innovative shapes and materials.

The large weight and shape of the bullet (which, according to the rules of external ballistics, is considered suboptimal) can of course make shooting at long distances difficult, but experienced hunters with .30-06 caliber weapons in the 14 g range hit the animal well at distances of 50-200 m. Remington in Russia, along with modern bullets, also offers inexpensive classics, and the consistency of the assortment gives hunters the opportunity to compare different cartridges and build their arsenal, because in a hunter’s arsenal one of the main places is occupied by the cartridge.

Remington's pricing policy helps hunters develop good habits - for Russia, there are seven cartridges in the .30-06 caliber lineup. The cost of one cartridge ranges from 52 rubles to 90 rubles per cartridge. The cheapest 52 rubles are 180 grain (11.7 g) Core-Lokt PSP bullets, as well as Core-Lokt SP bullets.

Bullets with the designation PSP differ from the blunt-pointed half-shell SP by a pronounced ogive shape, and therefore are somewhat inferior to it in terms of expansive action. But PSP bullets have a flatter trajectory and better aimed shooting range.

Cartridge .300 Remington Ultra Magnum / 7.6×72

The .300 Remington Ultra Magnum cartridge is designated: .300 Remington Ultra Magnum / .300 Rem Ultra Mag / .300 RUM / 7.6×72 / XCR 08 072 BRC 030.

.300 Remington Ultra Magnum
The .300 Remington Ultra Magnum (not to be confused with the .300 Remington Ultra Magnum Short Action) was developed in 1998 for the Remington Mod repeating rifle. 700 and was first presented at the international Shot Show in 1999.

Like the entire Remington Ultra Magnum line of cartridges, the .300 Ultra Magnum features an oversized beltless case with a headspace located on the case ramp. Such a casing, according to the company’s engineers, provides a gain in the volume and size of the powder charge, in the strength of the casing and an increase in its service life.

Some sources indicate that the new cartridge is based on the .404 Jeffery cartridge case, while others note that the new cartridge is strongly reminiscent of the already existing .300 Canadium Magnum, which was based on the .404 Jeffery cartridge case.
However, in any case, the .300 Remington Ultra Magnum case has a reliably slightly larger diameter and practically fits the existing SAAMI standard. The latter means that rifles originally designed to chamber traditional magnum belt cartridges in this caliber with a magazine length of 3.6 inches (91.44 mm) can easily be converted to chamber the .300 Remington Ultra Magnum. Indeed, the rim diameter of the cartridge is the same as that of traditional belt cases, but the diameter of the case body is significantly larger - 0.550 inches versus 0.511 inches for belt cases. In terms of ballistics, the .300 Rem Ultra Mag cartridge is slightly inferior to the .30-378 Weatherby Magnum. .300 Remington Ultra Magnum The
.300 Remington Ultra Magnum cartridge has a bottle-shaped case, a reinforced Large Rifle primer, a maximum bullet diameter of 7.82 mm (.308″), a maximum case base diameter of 13.97 mm, and maximum case lengths and cartridge 72.26 mm and 91.44 mm, respectively, barrel rifling pitch 10 inches. Equipped with Scirocco, Core-Lokt and Nosier Partition bullets weighing 9.72-12.96 g with a powder charge of 6.2-6.80 g, initial speed and energy are 922-1052 m/s and 4768-5722 J, respectively. Exceeding the trajectory the flight of a bullet when shooting “zero” at 228 m deviates from the aiming line no more: at a distance of 91 m - +6.1 cm, 137 m - + 7.1 cm, 183 m - +5.1 cm, 274 m - - 8.6 cm, 366 m - -37.1 cm, 457 m - -82.6 cm. The pressure of the powder gases in the chamber is 400 MPa.

The .300 Remington Ultra Magnum is a long-range and powerful cartridge. Like all high-velocity cartridges, it has a sharp and unpleasant recoil.

Remington has developed a whole family of weapons chambered for the cartridge. Their design is based on the proven Model 700 bolt action design.

Chinese and other versions

In addition to the modifications described, the Remington 870 shotgun also has other versions that are not so popular among hunters, but also deserve mention:

• MCS (Modular Combat Shotgun). A shortened version of the standard Remington (barrel length up to 10 inches), equipped with a pistol or semi-pistol grip for ease of shooting at short distances. It is not difficult to guess that the model is mainly in demand among law enforcement officers.
• 870 MCS. Another shortened modification (barrel length up to 18 inches), differing from the previous version by the presence of a rifle front sight and an adjustable rear sight, as well as a separate handguard of a unique shape. There are several options with a detachable or folding stock.
• 870 MCS Express Tactical A-Tacs Camo. The newest shotgun, based on the previous modification. The model is distinguished by a standard forend and an enlarged sighting line. There is also a muzzle brake-compensator with teeth at the end of the barrel. The plastic stock and metal parts are painted in camouflage color.
• Express Tactical. A carbine with a simple DTK designed to absorb a significant part of the muzzle energy and reduce the flame level. A rifle front sight and rear sight are used as a standard sighting device. It is also possible to install optics under a Picatinny sighting rail.
• SPS Shurshot Synthetic Super Slug. A military version of the shotgun, equipped with an adjustable orthopedic stock, an optical sight, and also has a camouflage color (desert or forest). An additional body kit can be installed under the barrel using a 22 mm bracket.

The Chinese company Norinco also produces modifications for the Remington 870 carbine. Previously, the company had a patent for the production of American weapons, but today the license has long expired, so the models are prohibited for sale in the States. However, Norinco still exports its guns to other countries, including Russia. A striking example is the popular models M-98 and HP-9-1, as well as Hawk-982.

Design features of the Remington 870

The design of the Remington 870 pump-action shotgun is based on a hammer-type trigger mechanism, as well as a mechanical reloading system. The movable type handguard is attached to the bolt using two combat rods. When the shooter pulls the fore-end towards himself, the bolt opens, after which the spent cartridge is ejected and the hammer is cocked. As soon as the mechanism returns to its original position, a new cartridge is sent into the chamber, after which the channel is locked.

One of the main features of the American shotgun is its heavy-duty receiver, which is made from high-strength steel. The transfer of ammunition to a tubular magazine occurs one piece at a time through a special window located in the lower part of the receiver. Depending on the version, it can hold from 3 to 8 ammunition (+1 can be immediately sent into the chamber).

The stock of the carbine can be classic (a semi-pistol type handle and the butt in a fixed position) or separate (the butt and handle are divided into different components, usually made of durable polymer). In the second case, the stock can be not only fixed, but also customizable, as well as folding for ease of shooting at short distances. However, such models are mainly used by law enforcement agencies.

The receiver quite often (especially in modern models) has a Picatinny sighting rail, which allows you to install almost any optical or collimator sight with a 22 mm bracket. In addition, the “body kit” can also be secured using a ventilated lower bar under the barrel. Typically, such tuning elements are a laser target designator or a tactical flashlight.

As a standard sighting device, you can use either a classic front sight with an aiming bar, or a rifle with an adjustable rear sight (the sight is adjusted vertically and horizontally), or nothing at all. The sights of modern guns are also sometimes equipped with red and green fiber optics, which ensure comfortable shooting even in low light conditions (at dusk or dawn).

Various tuning options for the Remington 870

Unlike domestic models, for which you have to buy tuning elements yourself, the Remington 870 can be immediately ordered with a full body kit and tuning. These improvements will affect almost all components of the weapon:

• You can order any type of stock, even a specialized one that compensates for recoil.
• Handguard of almost any type and made of any material.
• Adjust the sear spring force according to your needs. For a hunter, it is better to reduce the force to a minimum, and in security or self-defense versions it is better to increase it, otherwise the owner will not be protected from an accidental shot.
• As a sight, you can use both standard open-type sighting devices and various optics, laser and collimator sights.
• You can order a pistol grip instead of the standard one, and also replace the standard coating, which is not very reliable, with a blued one.
• Using a Picatinny rail, which is not included, you can equip the Remington 870 with a wide range of different under-barrel lights.

Thus, the Remington 870 is a real construction kit, for which a wide range of additional tuning modifications are available to suit any most demanding taste.

When purchasing a Remington 870 in a store, first of all pay attention to the quality of fit of the main parts. Many Russian hunters complained that guns imported to the Russian Federation often have shortcomings in this regard. So ask your gun store clerk to partially disassemble the shotgun, then inspect all parts for defects or damage.

Particular attention should be paid to the quality of the barrel, which must be perfectly smooth. Well, don’t forget to evaluate the balance and applicability by holding the model in your hands for a few minutes.

So what is the reason for the high popularity of the Remington 870 carbine, and the answer is quite simple: its simple design, as well as proven reliability. In 1951, it was possible to produce a weapon that could withstand the enormous power of magnum cartridges, and was also distinguished by high build quality. In addition to this, one cannot fail to note the convenient reloading system and a very spacious magazine - what else is needed for shooting? Well, the demand for Remington has not fallen simply because the company has produced and continues to produce various modifications that are easy to tune. So it turns out that the shotgun has all the qualities that are so important to a hunter, continuing to hold a leading position in the market for 70 years.

The Remington 870 is undoubtedly one of the best pump action shotguns in the world. However, for a Russian hunter this model may turn out to be an unaffordable luxury. And it’s not even a matter of the high price tag, but the whimsical quality of the cartridges - the shotgun simply will not work properly with Russian ammunition, so you will have to constantly buy imported ones. Although for professional hunters who make a good living from their hobby, the financial side of the issue may not seem important, so for this category of people the Remington 870 will come in very handy.