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Encyclopedia > Bolt action
Half-opened bolt on a Winchester Model 70.
Half-opened bolt on a Winchester Model 70.

The term bolt action refers to a type of firearm action in which the weapon's bolt is operated manually by the opening and closing of the breech with a small handle, most commonly placed on the right-hand side of the weapon. As the handle is operated, the bolt is unlocked, the breach is opened, the spent shell casing is withdrawn and ejected, and finally a new round/shell (if available) is placed into the breach and the bolt closed. Bolt action firearms are most often rifles, but there are some bolt-action shotguns as well. Examples of this system date back to the 19th century, and except for most sniper rifles and civilian use, have been largly replaced with semi-automatic weapons around the world. Image File history File links Download high resolution version (2028x1326, 2004 KB) Summary Picture taken by submitter. ... Image File history File links Download high resolution version (2028x1326, 2004 KB) Summary Picture taken by submitter. ... 7mm magnum Winchester Model 70, with a muzzle brake. ... In firearms terminology, an action is the system of operation that the firearm employs to seal the breech (in a breech-loading firearm), and to load consecutive rounds. ... This page may meet Wikipedias criteria for speedy deletion. ... Breech from Russian 122 mm M1910 howitzer, modified and combined with 105mm H37 howitzer barrel An interrupted screw style breech plug in the M109 howitzer An animation showing the loading cycle for a large naval breech-loader. ... This article does not adequately cite its references or sources. ... It has been suggested that Lead shot, Shotgun slug, Slug (projectile), Brenneke slug, Foster slug, specialty shotgun amunition, Flexible baton round, Breaching round, Bolo Shell, Dragons Breath, R.I.P. cartridge, Rat-shot be merged into this article or section. ... For other uses, see Rifle (disambiguation). ... For other uses, see Shotgun (disambiguation). ... The M40, United States Marine Corps standard-issue sniper rifle. ... Walther P99, a semi-automatic pistol from the late 1990s A semi-automatic firearm is a gun that requires only a trigger pull for each round that is fired, unlike a single-action revolver, a pump-action firearm, a bolt-action firearm, or a lever-action firearm, which require the...

Contents

History

Bolt-action Savage Striker pistol
Bolt-action Savage Striker pistol

Throughout the 1800s breech-loading bolt-actions continued to develop following a steady progression, seeing widespread adoption and continual improvements in design. World War I marked the height of the type's use though automatic loading designs were introduced during the war. // Savage Arms was founded in 1894 by Arthur Savage in Utica, NY. Perhaps best-known for the Savage Model 99 which is a hammerless lever action rifle, which is no longer in production. ... // Invention of the Jacquard loom in 1801. ... “The Great War ” redirects here. ... M2 Browning machine gun An automatic firearm is a firearm that automatically extracts and ejects the fired cartridge case, and loads a new case, usually through the energy of the fired round. ...


During the build up prior to World War II, the military bolt-action rifle began to be superseded by the semi-automatic rifle and later assault rifles, though it remained the primary weapon of some (mostly Russian) infantry for the duration of the war.[citation needed] The bolt-action is still common today among sniper rifles, as the design has potential for superior accuracy, reliability, lesser weight, and the ability to control loading over the faster rate of fire that alternatives allow. There are however, many semi-automatic sniper rifle designs, especially in the designated marksmen role. Combatants Allied powers: China France Great Britain Soviet Union United States and others Axis powers: Germany Italy Japan and others Commanders Chiang Kai-shek Charles de Gaulle Winston Churchill Joseph Stalin Franklin Roosevelt Adolf Hitler Benito Mussolini Hideki Tōjō Casualties Military dead: 17,000,000 Civilian dead: 33,000... A semi-automatic rifle is a type of rifle that fires a single bullet each time the trigger is pulled, without the need to manually operate a bolt, lever or other firing or loading mechanism. ... The AK-47 is the worlds most common assault rifle. ... The M40, United States Marine Corps standard-issue sniper rifle. ... Designated marksman - Wikipedia /**/ @import /w/skins-1. ...


Today, bolt-action rifles are chiefly used as hunting rifles. These rifles can be used to hunt anything from vermin, to deer, to large game, especially big game caught on a safari, as they are adequate to deliver a single lethal shot from a safe distance. Look up vermin in Wiktionary, the free dictionary. ... This article is about the ruminent animal. ... Game is any animal hunted for food. ... Safari as a distinctive way of hunting was popularized by Ernest Hemingway and Teddy Roosevelt. ...


Bolt-action shotguns are considered a rarity among modern firearms, but were formerly a commonly used action for .410 entry-level shotguns, as well as for low-cost 12 gauge shotguns. The XM26 Lightweight Shotgun System (LSS) is the most advanced and recent example of a bolt-action shotgun, albeit one designed to be attached to an M16 rifle or M4 carbine using an underbarrel mount (although with the standalone kit, the LSS can become a standalone weapon). Mossberg 12 gauge bolt-action shotguns were briefly popular in Australia after the 1997 firearms law changes, but the shotguns themselves were awkward to operate and only had a three-round magazine, thus offering no practical and real advantages over a conventional double-barrel shotgun. Remington pump-action shotgun held by a Florida Highway Patrol cadet shotgun, see: Shotgun (disambiguation). ... The Gauge or bore of a shotgun is a unit of measurement used to express the diameter of the barrel. ... M4 carbine with XM26 LSS The XM26 Lightweight Shotgun System (LSS) is a developmental under-barrel shotgun attachment for the M16/M4 family of U.S. service firearms. ...


Some pistols are bolt action, although this is uncommon, and such examples are typically specialised target handguns.


Major Bolt Action systems

There are three major bolt action system designs: the Mauser system, the Lee-Enfield system, and the Mosin-Nagant system. All differ in the way the bolt fits into the receiver, how the bolt rotates as it is being operated, the number of locking lugs holding the bolt in place as the gun is fired, and whether the action is cocked on the opening of the bolt (as in the Mauser system) or the closing of the bolt (as in the Lee-Enfield system). The vast majority of bolt-action rifles utilize one of these three systems, with other designs seeing only limited use.


Mauser

Standard length left-handed Remington 700 rifle action (left side)
Standard length left-handed Remington 700 rifle action (left side)
Main article: Mauser

The Mauser bolt system was introduced in the Mauser Gewehr 98 and is the most common bolt action system in the world, being in use in nearly all modern hunting rifles and the majority of military bolt-action rifles until the middle of the 20th century (besides the Mauser K98, the Mauser bolt system was also used in the American M1903 Springfield rifle, the Japanese Arisaka Type 38 and Type 99 rifles, and the Anglo-American M1917 Enfield). The Mauser system is stronger than that of the Lee-Enfield because of the third locking lug present at the rear of the bolt, and is able to handle higher pressure cartridges (ie "Magnum" calibre centrefire rifle cartridges), unlike the Lee-Enfield or Mosin-Nagant actions. The Mauser system, due to its "cock on opening" operation (the upward rotation of the bolt when the rifle is opened cocks the action) has a slower rate of fire than the "cock on closing" systems used in the Lee-Enfield. Mauser is the common name of a German arms manufacturer, maker of a line of bolt-action rifles from the 1870s to present. ... Mauser is the common name of a German arms manufacturer, maker of a line of bolt-action rifles from the 1870s to present. ... This article or section is not written in the formal tone expected of an encyclopedia article. ... Mauser is the common name of German arms manufacturer Mauser-Werke Oberndorf Waffensysteme GmbH, as well as the line of bolt action rifles they built for the German armed forces. ... The Springfield 1903 rifle (military designation United States Rifle, Caliber . ... Arisaka is a family of Japanese military bolt-action rifles, in production from approximately 1898 until the end of World War II in 1945. ... The Type 38 Rifle Arisaka (三八式歩兵銃 Sanpachi-shiki hoheijyuu) was a bolt-action rifle. ... The Type 99 Rifle (From the Japanese 九九式小銃 or 九九式長小銃 Kyuukyuu-shiki syoujyuu or Kyuukyuu-shiki tyousyoujyuu) was a bolt-action rifle of the Arisaka design used by the Imperial Japanese Army during World War II. Although the Type 38 Rifle was an excellent rifle, the small caliber (6. ... The M1917 Enfield 30 caliber rifle was an American modification and production of the British 303 caliber P-14 rifle during the period 1917 - 1918. ...


Versions of the Mauser action designed prior to the Gewehr 98's introduction, such as that of the Swedish Mauser rifles and carbines, lack the third locking lug and have "cock on closing" operation. A Swedish M96 rifle with accesories Swedish Mauser is the name applied by military rifle collectors to the 6. ...

The Model 700 series of firearms are hunting rifles manufactured by Remington Arms since 1962. ... 7mm magnum Winchester Model 70, with a muzzle brake. ... This article or section is not written in the formal tone expected of an encyclopedia article. ... The Karabiner 98 Kurz (often abbreviated Kar98k or K98k) was a bolt-action rifle adopted as the standard infantry rifle in 1935 by the Wehrmacht,[3] and was one of the final developments in the long line of Mauser military rifles. ... The Springfield 1903 rifle (military designation United States Rifle, Caliber . ... Arisaka is a family of Japanese military bolt-action rifles, in production from approximately 1898 until the end of World War II in 1945. ... The Type 38 Rifle Arisaka (三八式歩兵銃 Sanpachi-shiki hoheijyuu) was a bolt-action rifle. ... The Type 99 Rifle (From the Japanese 九九式小銃 or 九九式長小銃 Kyuukyuu-shiki syoujyuu or Kyuukyuu-shiki tyousyoujyuu) was a bolt-action rifle of the Arisaka design used by the Imperial Japanese Army during World War II. Although the Type 38 Rifle was an excellent rifle, the small caliber (6. ...

Lee-Enfield

Close-up of the action on an SMLE Mk III rifle, showing the bolt-head, magazine cut-off, and charger clip guide.
Close-up of the action on an SMLE Mk III rifle, showing the bolt-head, magazine cut-off, and charger clip guide.
Main article: Lee-Enfield

The Lee-Enfield bolt action system was introduced in 1889 with the Lee-Metford and later Lee-Enfield rifles (the bolt system is named after the designer and the Royal Small Arms Factory at Enfield), and is a "cock on closing" action in which the forward thrust of the bolt cocks the action. This allows for a much faster rate of fire, but the system is unsuitable for use with modern "Magnum" calibre centrefire rifle cartridges. Interestingly, the Lee-Enfield bolt system features a removable bolthead, which allows the rifle's headspace to be adjusted by simply removing the bolthead and replacing it with one of a different length as required. In the years leading up to WWII, the Lee-Enfield bolt system was used in numerous commercial sporting and hunting rifles manufactured by such firms in the UK as BSA, LSA, and Parker-Hale, as well as by SAF Lithgow in Australia. Vast numbers of ex-military SMLE Mk III rifles were sporterised post-WWII to create cheap, effective hunting rifles, and the Lee-Enfield bolt system is used in the M10 and No 4 Mk IV rifles manufactured by Australian International Arms. Image File history File linksMetadata Download high resolution version (1200x821, 753 KB)The Receiver and Action of a 1908 RSAF Enfield . ... Image File history File linksMetadata Download high resolution version (1200x821, 753 KB)The Receiver and Action of a 1908 RSAF Enfield . ... A stripper clip or charger, not to be confused with the revolver clip or plain clip, is a speedloader that holds several cartridges together in a single unit for easier loading of a firearms magazine. ... Lee-Enfield No4 Mk1 with bayonet, scabbard attached The Lee-Enfield was the British armys standard bolt action, magazine-fed, repeating rifle from 1895 until 1956. ... The Lee-Metford rifle was a breech-loading British army service rifle, combining James Paris Lees rear-locking bolt system and ten-round magazine with a seven groove rifled barrel designed by William Ellis Metford. ... In firearms terms, headspace refers to the distance between the bolt face and chamber necessary for reliable functioning of the weapon, or as a verb, the mechanism by which the correct positioning is achieved. ...

  • Lee-Enfield (all marks and models)
  • Ishapore 2A1
  • Various hunting/sporting rifles manufactured by BSA, LSA, SAF Lithgow, and Parker-Hale
  • Australian International Arms M10 and No 4 Mk IV hunting/sporting rifles

The Rifle 7. ... The Birmingham Small Arms Company (BSA) was a British manufacturer of vehicles, firearms, and military equipment, and still exists as an airgun sport manufacturer and distributor. ... The wristguard markings on a 1918-dated Short Magazine Lee-Enfield Mk III* rifle manufactured by the London Small Arms Co. ... This page is a candidate to be moved to Wiktionary. ...

Mosin-Nagant

Main article: Mosin-Nagant

The Mosin-Nagant action differs from the Mauser and Lee-Enfield actions, in that it has a separate bolthead which rotates with the bolt and the bearing lugs, in contrast to the Mauser system where the bolthead is a non-removable part of the bolt are a single piece and rotate as such, or the Lee-Enfield system where the bolthead remains stationary and the bolt body rotates. The Mosin-Nagant bolt is a somewhat complicated affair, but is extremely rugged and durable. Like the Lee-Enfield bolt system, the Mosin-Nagant system is not suitable for use with modern "Magnum" calibre centrefire rifle cartridges. Although the bolt system is not employed in any commercial sporting rifles, the Mosin-Nagant rifle is the most numerous bolt-action rifle ever produced and large numbers of them have been sporterised for use as hunting rifles in the years since WWII. The Mosin-Nagant (Мосин-Наган) is a military rifle of Russia and later the Soviet Union, in service in various forms from 1891 until the 1960s, when it was finally replaced in its final function as a sniper rifle by the SVD rifle (Снайперская винтовка Драгунова - Snayperskaya Vintovka Dragunova - Dragunov...


One interesting aspect of the Mosin-Nagant rifle's long and varied history is that of the wars for independence between Finland and the Soviet Union. Large numbers of these, some antiques made by France and even America for Czarist Russia, were recycled by Finland and then refined into various models prior to WW2, all of them vastly superior to more common examples of the M-N system. The Finnish M39 is widely considered to be one of the finest and most accurate military rifles ever produced.


Hybrids

Some rifles, such as the Swedish Mauser and the Pattern 1914 and M1917 Enfields, use a hybrid of the Mauser and Lee-Enfield systems. A Swedish M96 rifle with accesories Swedish Mauser is the name applied by military rifle collectors to the 6. ... The Rifle, .303 Pattern 1914 (or P14) was a British service rifle of the First World War period that was principally contract manufactured by companies in the United States. ... The M1917 Enfield 30 caliber rifle was an American modification and production of the British 303 caliber P-14 rifle during the period 1917 - 1918. ...


The Model 96 and Model 38 Swedish Mausers, for example, use a Mauser bolt which is of a "cock on closing" closing design (giving it a faster rate of fire than the Mauser K98 or the M1903 Springfield, but still not quite as fast as the Lee-Enfield), whereas the Pattern 1914 Enfield uses a system whereby the action is half-cocked as the bolt is opened, with the forward thrust of the bolt on reloading fully cocking the rifle. The Pattern 1914 Enfield also uses safety of the Lee-Enfield, while the bolt itself is largely derived from the Mauser 98.


Other designs

In addition to the most common bolt action systems, others have been devised that failed to achieve the ubiquity of the Mauser, Lee-Enfield, and Mosin-Nagant designs. Some of the most notable of these are the Swiss Schmidt-Rubin and Austro-Hungarian Steyr-Mannlicher M1895 designs. Both are straight-pull bolt actions, but are entirely unrelated designs. The Schmidt-Rubin rifles feed from stripper clips, albeit of an unusual cardboard and steel design, while the Steyr-Mannlicher uses en-bloc clips. The Schmidt-Rubin series, which culminated in the K31, are also known for being among the most accurate military rifles ever made. The service rifle in use in Switzerland between 1889 and 1953, as well as the straight-pull bolt-action featured in this rifle. ... Austria-Hungary, also known as the Dual monarchy (or: the k. ... 8x50R Steyr-Mannlicher M1895 Long Rifle The Steyr-Mannlicher M1895 rifle is an early bolt-action rifle, employed by the Austro-Hungarian army throughout World War I, and post-war by both Austrian and Hungarian armies. ... A stripper clip or charger, not to be confused with the revolver clip or plain clip, is a speedloader that holds several cartridges together in a single unit for easier loading of a firearms magazine. ... Cardboard is a generic non-specific term for a heavy duty paper based product. ... A clip is a device that is used to store multiple rounds of ammunition together as a unit, ready for insertion into the magazine of a repeating firearm. ... The Karabiner Model 1931 is a magazine-fed, straight-pull bolt-action rifle. ...


Another notable design is the Norwegian Krag-Jørgensen, which was used by Norway, Denmark, and briefly the United States. It is unusual among bolt action rifles in that is loaded through a gate on right side of the receiver, and thus can be reloaded without opening the bolt. The Norwegian and Danish versions of the Krag have two locking lugs, while the American version has only one. In all versions, the bolt handle itself serves as an emergency locking lug. The Krag's major disadvantage compared to other bolt-action designs is that it must be loaded by hand, one round at a time. This made it slower to reload than other designs which used stripper or en-bloc clips. The Krag-Jørgensen is a repeating bolt action rifle designed by the Norwegians Ole Herman Johannes Krag and Erik Jørgensen in the late 19th century. ...


Operating the bolt

Typically, the bolt consists of a tube of metal inside of which the firing mechanism is housed, and which has at the front or rear of the tube several metal knobs, or "lugs", which serve to lock the bolt in place. The operation can be done via a rotating bolt, a lever, or a number of systems. For example, one setup is a straight-pull design, such as the German Blaser R93 rifle. Straight-pull designs have seen a great deal of use, though manual turn-bolt designs are what is most commonly thought of in reference to a bolt-action design due to the type ubiquity. As a result the bolt-action term is often reserved for more modern types of rotating bolt-designs when talking about a specific weapon's type of action, however both straight-pull and rotating bolt rifles are types of bolt-action rifles. Lever-action and pump-action weapons must still operate the bolt, but they are usually grouped separately from bolt-actions that are operated by a handle directly attached to a rotating bolt. Rotating bolt of a Sig 550 rifle. ... The Blaser R93 Tactical is a German sniper rifle, used heavily by the German and Dutch police forces. ... A lever-action is a type of firearm which uses a lever located around the trigger guard area (often including the trigger guard itself) to load fresh cartridges into the chamber of the barrel when the lever is cranked. The most famous of such lever-action firearms is the Winchester... A pump-action rifle or shotgun is one in which the fore-end of the stock can be pumped back and forth in order to eject and chamber a round of ammunition. ...


Loading

Most bolt-action firearms are fed by an internal magazine loaded by hand, by en bloc, or stripper clips, though a number of designs have had a detachable magazine or independent magazine, or even no magazine at all, thus requiring that each round be independently loaded. Generally, the magazine capacity is limited to three to ten rounds, as it can permit the magazine to be flush with the bottom of the rifle, reduce the weight, or prevent mud and dirt from entering. A number of bolt-actions have a tube magazine, such as along the length of the barrel. In weapons other than large rifles, such as pistols and cannons, there were some manually operated breech loading weapons. However, the Dreyse Needle fire rifle was the first breech-loader to use a rotating bolt design. Johann Nicholas von Dreyse's rifle of 1838 was accepted into service by Prussia in 1841, which was in turn developed into the Prussian Model 1849. The design was a single-shot breech loader, and had the now familiar arm sticking out the bolt to turn and open the chamber. The entire reloading sequence was a more complex procedure than later designs, however, as the firing pin had to be independently primed and activated, and the lever was only used to move the bolt. A 30-round STANAG magazine. ... A clip is a device that is used to store multiple rounds of ammunition together as a unit, ready for insertion into the magazine of a repeating firearm. ... A stripper clip or charger, not to be confused with the revolver clip or plain clip, is a speedloader that holds several cartridges together in a single unit for easier loading of a firearms magazine. ... A 30-round STANAG magazine. ... A Browning 9 millimeter Hi-Power Ordnance pistol of the French Navy, 19th century, using a Percussion cap mechanism Derringers were small and easily hidden. ... For other uses, see Cannon (disambiguation). ... The Dreyse needle-gun (German das Zündnadelgewehr or figuratively firing-pin rifle) was a military breechloading rifle, famous as the arm of the Prussians in 1866 and of the Germans in 1870 and 1871. ... A breech-loading weapon, usually a gun or cannon, is one where the bullet or shell is inserted, loaded, into the gun at the rear of the barrel, the breech; the opposite of muzzle-loading. ... Johann Nicholas von Dreyse (1787 - 1867) is most famous for producing in 1836 the Needle Gun thought of by some to be the first bolt-action rifle. ... For other uses, see Prussia (disambiguation). ... Single shot pistols have existed since the early years of firearms. ... The firing pin is a very hard steel rod with a one small, rounded end for striking the primer of a cartridge. ...


Benefits and Drawbacks

Bolt-action firearms have earned a reputation for being more powerful and accurate than any semiautomatic rifle. For this reason, they are still the choice of many target shooters and snipers. This is true because of the way that bolt action rifles close the chamber. When a bullet fires inside the chamber, the force from the charge is completely directed at propelling the bullet down the barrel (In an autoloader, part of the energy is used to cycle the action). Also, a bolt action's only moving parts when firing are the pin and spring. Since it has fewer moving parts and a short lock time, it has less of a chance of being thrown off target and less of a chance to jam. Finally, since the spent cartridge has to be manually removed instead of automatically ejected, it helps a sniper remain better hidden, since not only is the cartridge not flung into the air and to the ground, possibly giving away the sniper's position, but the cartridge can be removed when most prudent, allowing the sniper to remain still until reloading is tactically feasible. Bolt actions are also easier to operate from a prone position than other manually repeating mechanisms and work well with box magazines which are easier to fill and maintain than tubular magazines. For other uses, see Sniper (disambiguation). ... Moving parts are the components of a device that undergo continuous or frequent motion, most commonly rotation. ... Ruger 10/22 carbines, before accurizing (top) and after (below). ... Gravure of a 30-round STANAG 4179 magazine, originally designed for the AR-15/M16 series of rifles. ... Gravure of a 30-round STANAG 4179 magazine, originally designed for the AR-15/M16 series of rifles. ...


Some disadvantages of the bolt action include being the slowest of all the major manual repeating mechanisms, as it requires four distinct movements (as opposed to two for lever and pump action, though straight-pull bolt actions likewise require only two movements) and requires the trigger hand leave the gun and regrip the weapon after each shot, usually resulting in the shooter having to realign his sight and reacquire the target for every shot. It is also not ambidextrous. A lever-action is a type of firearm which uses a lever located around the trigger guard area (often including the trigger guard itself) to load fresh cartridges into the chamber of the barrel when the lever is cranked. The most famous of such lever-action firearms are the Martini... A pump-action rifle or shotgun is one in which the handgrip can be pumped back and forth in order to eject and chamber a round of ammunition. ... Ambidexterity is the ability of being equally adept with each hand (or, to a limited degree, feet). ...


Safety and Headspace

On used bolt-action firearms, especially, the headspace should be checked prior to shooting, to ensure it is correct, to prevent over-stressing chambers and cartridge brass. Some bolt-action rifles, such as the Lee-Enfield, have a series of different length bolts available to extend the service life of the rifle, for taking up any wear of the bolt and chamber occurring from long years of service. In firearms terms, headspace refers to the distance between the bolt face and chamber necessary for reliable functioning of the weapon, or as a verb, the mechanism by which the correct positioning is achieved. ... Lee-Enfield No4 Mk1 with bayonet, scabbard attached The Lee-Enfield was the British armys standard bolt action, magazine-fed, repeating rifle from 1895 until 1956. ...


See also

The Krag-Jørgensen is a repeating bolt action rifle designed by the Norwegians Ole Herman Johannes Krag and Erik Jørgensen in the late 19th century. ... The Schmidt-Rubin K31 is a magazine-fed, bolt-operated repeating rifle. ... For a discussion of this weapon as it pertains to the John F. Kennedy assassination, see John F. Kennedy assassination rifle. ... The Springfield M1903, formally the United States Rifle, Caliber . ... The origins of the modern British military rifles are within its predecessor the Brown Bess musket. ... The Spencer repeating rifle was a manually operated lever-action, repeating rifle fed from a tube magazine with cartridges. ... 7mm magnum Winchester Model 70, with a muzzle brake. ... The Model 700 series of firearms are hunting rifles manufactured by Remington Arms since 1962. ... The A-Bolt Rifle is a bolt-action rifle made by the American Browning Arms Company. ... An Antique Firearm is, loosely speaking, a firearm designed and manufactured prior to the beginning of the 20th century- the Boer War is often used as a cut-off event, although the exact definition of what constitutes an Antique Firearm varies from jurisdiction to jurisdiction. ... A lever-action is a type of firearm which uses a lever located around the trigger guard area (often including the trigger guard itself) to load fresh cartridges into the chamber of the barrel when the lever is cranked. The most famous of such lever-action firearms are the Martini... A pump-action rifle or shotgun is one in which the handgrip can be pumped back and forth in order to eject and chamber a round of ammunition. ... Blowback is a system in which automatic or semi-automatic firearms operate through the energy created by combustion in the chamber and bore acting directly on the bolt face through the cartridge. ... The gas-operated system for implementing automatic reloading of a firearm is one of five such systems, the others being recoil-operated, gatling, chain, and blowback. ... Recoil operation is a type of locked-breech firearm actions used in automatic firearms. ...

References

Image File history File links Question_book-3. ...

External links

  • [1]: Mosin-Nagant rifles (all marks and models)

  Results from FactBites:
 
Shooting Times Magazine: Your Best Bolt Action (2564 words)
As the cartridge is withdrawn from the action, the mouth of the case drags on the barrel and receiver ring until it is flipped out the ejection port.
In fact, the ejector is not even in contact with the cartridge case until the bolt is pulled to the rear and the ejector extends past the boltface to flip the case out of the action.
The result is that the bolt is pulled clear out of the action when the action is opened.
  More results at FactBites »


 

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