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Type of gun barrel rifling
valleys", so the barrel bore has a polygonal (usually hexagonal or octagonal) cross-sectional profile. Polygonal riflings with a larger number of edges have
Polygonal_rifling
Grooves in a weapon barrel for accuracy
commonly used in modern rifling have fairly sharp edges. More recently, polygonal rifling, a throwback to the earliest types of rifling, has become popular
Rifling
Brand of polymer-framed semi-automatic pistols
barrel has a female type polygonal rifling with a right-hand twist. The stabilization of the round is not by conventional rifling, using lands and grooves
Glock
Mexican assault rifle
polygonal rifling, which eliminates the normal grooves of a weapons barrel replacing them with a system of "hills and valleys" in a rounded polygonal
FX-05_Xiuhcoatl
German general-purpose machine gun
locking piece. The barrels could have traditional rifling or polygonal rifling. Polygonal rifling was an outgrowth of a cold-hammer forging process developed
MG_42
British lever action rifle
improved by the Swiss designer Friedrich von Martini, combined with the polygonal rifling designed by Scotsman Alexander Henry. Though the Snider was the first
Martini–Henry
Semi-automatic pistol
variation of H&K's roller delayed blowback system in a pistol format and polygonal rifling now common in H&K designs. [according to whom?] The P9 is a roller-delayed
Heckler_&_Koch_P9
Semi-automatic pistol
other models having polygonal rifling instead. As of 2016 the PPQ M2 9×19mm Parabellum and .40 S&W barrels also feature polygonal rifling. The PPQ features
Walther_PPQ
Firearm component which guides the projectile during acceleration
mechanism Fluting Glossary of firearms terms Minié ball Muzzleloader Polygonal rifling Slug barrel Smoothbore barrel, opposite of a rifled barrel Tubes and
Gun_barrel
Pistol cartridge designed by Evan Whildin
.50 AE bore diameter was .500 in, with conventional rifling, but the switch to polygonal rifling on production Desert Eagles allowed the gauge plug to
.50_Action_Express
Muzzle-loading rifle
with cannons using polygonal rifling instead of traditional rifled barrels, which was patented in 1854. The hexagonal polygonal rifling meant that the projectile
Whitworth_rifle
Semi-automatic pistol
use of polygonal rifling in the barrel bore. This replaces the traditional lands and grooves rifling design with a rounded, smooth polygonal pattern
CZ_82
Designated marksman rifle
adjusted from 100 to 600 m. It has a heavy free-floating barrel with polygonal rifling and an adjustable stock. The stock is of high impact matte black plastic
Heckler_&_Koch_PSG1
Semi-automatic pistol
rounds in .50 Action Express. The Desert Eagle's barrel features polygonal rifling. The pistol is primarily used for hunting, target shooting, and silhouette
Desert_Eagle
Pistol made in Taiwan
to cost issues. The T75K3 features lightweight materials and also, polygonal rifling developed at National Defense University which improve both barrel
T75_pistol
Semi-automatic pistol
semi-automatic handguns. Initially Jericho pistols used barrels with polygonal rifling, which sometimes produces slightly higher velocity due to better bullet
IWI_Jericho_941
Taiwanese AR-15–style rifle
safe, single, two shot burst, and full automatic. The barrel has polygonal rifling and a new model of flash hider. Barrel life is improved from the 6
T112_assault_rifle
Sporting and Target Rifle
Internal differences include a new buffer system and a change to polygonal rifling. All SR9s are marked "Made in W-Germany" on the right side of the
Heckler_&_Koch_SR9
Study of the propulsion of a projectile
are known as lands. Another system, polygonal rifling, gives the bore a polygonal cross section. Polygonal rifling is not very common, used by only a few
Internal_ballistics
Taiwanese assault rifle
added. New Magpul MOE SL stock added. T91K2 T91K3: The T91K3 features polygonal rifling which increases barrel life and improves accuracy. The 205th Arsenal
T91_assault_rifle
German firearm manufacturer, 1936–1945
the intended length and shape and forming the rifling. The rifling can be absent, conventional or polygonal and the mandrel can also include a squeeze bore
Berlin-Lübecker Maschinenfabrik
Berlin-Lübecker_Maschinenfabrik
Assault rifle
Although a shorter barrel generally results in lower muzzle velocity, Polygonal rifling partially compensates for the loss of velocity from a shorter barrel
Heckler_&_Koch_XM8
Semi-automatic pistol
series are: The CW series uses barrels with conventional rifling, rather than the polygonal rifling employed by the P series. The CW series has a pinned-in
Kahr_P_series
Caseless ammunition assault rifle prototype
Temperatures Propellant (HITP) based on Octogen. The barrel received polygonal rifling. The rifle case received a design by a dedicated designer. This Prototype
Heckler_&_Koch_G11
Semi-automatic pistol
waterproof and corrosion-resistant. The barrel is manufactured with polygonal rifling, which is reported to improve accuracy and durability, and is much
Heckler_&_Koch_Mark_23
Highly trained shooter
it used polygonal rifling instead, which meant that the projectile did not have to bite into grooves as was done with conventional rifling. The Whitworth
Sniper
Submachine gun
discharges casings from the right in single shooting mode. The barrel has polygonal rifling and a 1:10 twist rate. A force of 25 N is required to pull the trigger
SAR_109T
German defence manufacturing company
in firearms, such as the use of polymers in weapon designs, modern polygonal rifling, the feasibility of high-velocity caseless ammunition in prototype
Heckler_&_Koch
Family of Japanese service rifles
Arisaka rifles were some of the few firearms of their era to use polygonal rifling in their barrel, rather than "lands and grooves". Some of the early-issue
Arisaka
Semi-automatic pistol
and the dust cover has a picatinny rail. The barrel is made with polygonal rifling. List of delayed-blowback firearms Heckler & Koch P7, another gas-delayed
Arsenal_P-M02
Projectile propelled by a firearm, sling, or air gun
a hard lead alloy intended to reduce fouling of rifling grooves (especially of the polygonal rifling used in some popular pistols). Benefits include simpler
Bullet
German battle rifle
From the G3A3 the barrel was free floated from the stock and had polygonal rifling. The barrel chamber is fluted with twelve flutes, which assists in
Heckler_&_Koch_G3
German general-purpose machine gun
grooves and a rifling twist rate of 1 in 305 mm (1:12 in) and weighs 1.7 kg (3.7 lb). Alternatively, MG 3 barrels can also have polygonal rifling. The barrel
MG_3_machine_gun
American firearms manufacturer
pinned-in front sights rather than dovetail, traditional rifling rather than polygonal rifling, "rolled-on" lettering rather than engraved, and come with
Kahr_Arms
Type of rifle used for long-range engagements against enemy personnel
hexagonal polygonal rifling, which meant that the projectile did not have to "bite" into the rifling grooves as with conventional rifling. His rifle
Sniper_rifle
Common long range firearm
produced example was the Metford rifling in the Pattern 1888 Lee–Metford service rifle. Although uncommon, polygonal rifling is still used in some weapons
Rifle
Weapon that has a barrel without rifling
axis not parallel to the direction of travel. Rifling the surface of the bore with spiral grooves or polygonal valleys imparts a stabilizing gyroscopic spin
Smoothbore
General-purpose machine gun (HK21)
mechanism were also added. The barrels were internally revised to polygonal rifling. Since then, the HK21 was offered in two main variants: the HK21A1
Heckler_&_Koch_HK21
Revolver
manufactured in Tula by its parent company KBP. This early model has polygonal rifling. TKB-0216 (ТКБ-0216) - second variant chambered for 9×18mm Makarov
OTs-01_Kobalt
Submachine gun
part of the receiver is stamped from sheet steel. The barrel has polygonal rifling and is separated from the weapon during disassembly. The trigger mechanism
AEK-919K_Kashtan
Naval gun
retaining the same weight. Another innovation was the use of shallower polygonal rifling. All other guns were directly built to incorporate these changes.
100-ton_gun
In the same year Joseph Whitworth patented polygonal projectiles mechanically fitted with polygonal rifling in the muzzle-loaders. They were used in the
Rotation_of_ammunition
Semi-automatic pistol
system; fixed barrel (that theoretically yields greater accuracy); polygonal rifling; and a reduced number of working parts. During the development phase
Steyr_GB
Machine pistol/semi-automatic pistol
and is often compared to the Calico M590 and M960A. The gun has polygonal rifling. The Danuvia factory, having taken over prototypes by Róbert Vörös
Danuvia_VD-01
Semi-automatic pistol
traditional barrel with conventional (spiral grooves and lands) rifling, and PPS M2 has polygonal rifling. The PPS features three safeties (trigger safety, internal
Walther_PPS
Manual assembly of ammunition
available in this form. Some firearms manufacturers, such as those using polygonal rifling like Glock and H&K, advise against the use of cast bullets. For shooters
Handloading
Naval gun
muzzle loader and used his hexagonal, rifled-bore design. The gun used polygonal rifling, a principle invented by Whitworth in 1853. The concept was to use
70-pounder Whitworth naval gun
70-pounder_Whitworth_naval_gun
Semi-automatic pistol
is less muzzle rise and flip. The PM barrel configuration boasts polygonal rifling, which in theory will wear longer and gather less fouling. Almost
Kahr_PM_series
Assault rifle produced by Heckler & Koch
Note: the 1:178mm (1:7 in) rifling was compatible with the European-standard SS109 round and the 1:305 mm (1:12 in) rifling was compatible with the US-standard
Heckler_&_Koch_G41
Heavy gun
smaller chamber and deeper rifling. The latter solution was eventually preferred and from 1938 a variant with deep rifling replaced the original barrel
152_mm_gun_M1935_(Br-2)
Otis completes work on the safety elevator. Joseph Whitworth patents polygonal rifling for ordnance in the United Kingdom. 10 June – The Crystal Palace reopens
1854_in_science
Semi-automatic pistol
barrels after November 1994 use a polygonal profile; 1994 and earlier models use traditional 'land and grooves' rifling. During testing, a bullet was deliberately
Heckler_&_Koch_USP
Weapon
the Martini–Henry with Henry pattern 7-groove polygonal with ribbed angles & right hand twist rifling. The Swinburn–Henry also bore a striking resemblance
Swinburn–Henry
types of rifling (15, 10, and 7 grooves), and different weights. Although the James rifles were reported to be extremely accurate, the bronze rifling wore
Field artillery in the American Civil War
Field_artillery_in_the_American_Civil_War
Main battle tank
warheads become less efficient during spin stabilization induced by the rifling of a tank-gun barrel, the Obus G was designed so that the shaped charge
AMX-30E
Tool with teeth used to cut metal
but sometimes it is also rotated to create a spiral spline or gun-barrel rifling. Cutting fluids are used for three reasons: to cool the workpiece and broach
Broaching_(metalworking)
Line of fortifications in Belgium
fort designs By the 1870s, technological advances in artillery such as rifling, melinite, and delayed fuzes, had given it greater range, accuracy, and
Fortified_position_of_Liège
Coastal forts construction and maintenance in the U.S.
guns ranging from 24-pounder (5.82-inch) to 10-inch caliber; one Union rifling system was called the James rifle 6.4-inch (100-pdr), 8-inch (200-pdr)
Seacoast defense in the United States
Seacoast_defense_in_the_United_States
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