Discussion in 'Weapons, Equipment & Rations' started by PartTimePongo, Dec 21, 2004.
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Why would the cops need a full-auto twelve gauge?
Say you're manning a speed trap on Interstate 40 on the night shift.
Suddenly, your radio is giving you nothing but static. Your headlights start flickering on and off. Your K-9 gets up on its hind legs and starts singing "Moon River."
A UFO lands nearby.
The shape-shifting, man-eating space alien from "Predator" hops out and starts disturbing the peace.
It could happen.
evidently its needed to control the threat of soft toys stealing suvs
why not just use a machine gun ?
The bloke in the video is a good 14 stone, and cant stand upright when he's firing it. Thats just bloody dangerous. Couple that with shot spread at distance and you've got something truely lethal on your hands.
Wouldnt mind a go though, looks like fun
Naw, that's for pussies...
What you need is one of these:
Beowulf boosts AR to 0.50-cal firepower
The 0.50-calibre Beowulf AR-type rifle is the brainchild of Bill Alexander. His rifles and upper conversions are manufactured locally by his company, Alexander Arms, in leased facilities at the US Army's Radford Arsenal.
There have been a number of other large-calibre AR conversions similar in concept to the 0.50 Beowulf. Most have unpleasant recoil that may ultimately damage lower receivers whose recoil mechanisms were designed for recoil forces and bolt velocities associated with the much smaller 5.56 mm cartridge. To overcome the possibility of damage and accommodate the much larger cartridge case, Alexander dropped chamber pressures from the more than 3,515 kg/cm2 range of the 5.56 mm to approximately 2,320 kg/cm2. This results in a bolt velocity virtually identical to that of a rifle firing a 5.56 mm cartridge with recoil forces that are only slightly higher.
The 0.50 Beowulf feels like a 0.20-gauge shotgun when fired - more than a 5.56 mm but far less than some similar large-calibre AR conversions.
Cases for the 0.50 Beowulf are manufactured for Alexander by Starline, which essentially stretches a 0.50 Action Express (0.50AE) case and rebates the head a bit more to accommodate the smaller AR bolt. The head strength of the rebated case is more than enough to handle safely the pressures of the 0.50 Beowulf. The case tapers from 13.7 mm at the head to 13.3 mm at the mouth. Its rim diameter is 11.25 mm, the overall case length is 42 mm and the bullet diameter is 12.7 mm.
A number of loads are available for the 0.50 Beowulf. Bullet weights and muzzle velocities are described in the table below. From the ballistic data it is apparent that the 0.50 Beowulf is unlike almost every other calibre available for the AR-type rifle.
For military close-quarter battle (CQB) use, the heavy 0.50-calibre bullet delivers energy levels and capabilities far superior to those of 5.56 mm or 7.62 mm NATO bullets. The 0.50 Beowulf cartridge will disable automobile engines by damaging the block and other components. It can be used against other material targets that would defeat 5.56 mm or 7.62 mm NATO.
Unlike 0.50 BMG (12.7x99 mm) rifles, the 0.50 Beowulf is easily carried as it is almost the same size and weight as an M4 carbine. Since the 0.50 Beowulf is built on a standard AR receiver, there are no training issues other than recoil management, which should present a problem. Since the 0.50 Beowulf uses standard M16 magazines, there is no need for new magazine carriers or load-bearing equipment.
With frangible ammunition, the 0.50 Beowulf can be used as an entry gun to blow hinges off doors in urban combat or where ricochets, splashback and over-penetration are an issue. The muzzle brake reduces recoil and acts as a standoff device.
For use against barricaded targets, the 0.50 Beowulf knocks large chunks out of cinder block or brick walls and shatters concrete blocks with a single shot. One or two well-placed Beowulf rounds should cause cover to disintegrate around enemy soldiers. For naval use, the Beowulf can also be utilised as a boarding carbine capable of defeating steel-hulled small-to-medium-size vessels. The US Coast Guard has been seeking such a weapon, as have several US special operations units. Some of the latter use small numbers of 0.50 Beowulf carbines.
The large, heavy 0.50 Beowulf bullet, with its high cross-sectional area and low ballistic coefficient, is not a long-range round. By the time it has reached 300 m it has fallen by more 1,420 mm, although it still retains a velocity of 300 m/s and energy of 948 J. This translates to nearly 18 ' (minutes of arc), which is beyond the range of most scopes in terms of clicks of elevation to be dialled in.
The intended purpose of the 0.50 Beowulf is close-range work at distances of 200 m or less. From the table overleaf, it can be seen that the drop at 200 m is 381 mm (assuming a 100 mm zero). This can be easily compensated for by a well-trained individual, who should be able to place rounds on to a human target within the Beowulf's 200 m performance envelope. At CQB distances of 100 m or less the Beowulf outperforms smaller calibres, although its ballistic performance is offset to some degree by a reduced magazine capacity. (While the Beowulf feeds very reliably from standard M16 magazines, its capacity is dramatically reduced.)
M16 magazines of 20 rounds hold only seven 0.50 Beowulf rounds, while 30-round magazines accommodate only 10 of the fat Beowulf cartridges. Therefore the 0.50 Beowulf is definitely not a replacement for 5.56 mm and 7.62 mm NATO-calibre rifles and carbines but a supplementary weapon for tactical situations in which penetration and knockdown power are demanded. Unlike some other alternatives, all that is necessary to convert from 5.56 mm to a Beowulf carbine is an upper receiver in the latter calibre.
Alexander Arms makes 0.50 Beowulf rifles and carbines in barrel lengths ranging from 305 mm entry guns with collapsible stocks to 609 mm rifles, although most rifles and conversion units are variations on the 406 mm-barrel carbine.
All feature A3-type upper receivers with MIL-STD-1913 rails on the flat top upper receiver and gas block. Removable carry handles with A2-type sights are available as optional extras, as are scope mounts. A muzzle brake that serves as a standoff for entry work is also available and recommended. The felt recoil of a 0.50 Beowulf without muzzle brake is not so stout as to be painful to the firer: the muzzle brake helps to reduce felt recoil, enhancing control and improving the recovery time between shots.
Other options include the Predator rail adapter system described below; carrying handles; tactical sights that combine an A2 type rear sight with MIL-STD-1913 rail in place of the carry handle; scout rail; brass catcher; scope mounts; cleaning kit; and open front sights. The 0.50 Beowulf carbine is manufactured to military standard with 7075T6 forged aluminium receivers and is finished to MILSPEC.
IDR was provided with two Alexander Arms 0.50 Beowulf carbines for evaluation. One came with tan furniture - black firearms are becoming the exception rather than the rule in military operations. Special forces, in particular, frequently camouflage their rifles and equipment by spray painting them. With the 0.50 carbine, the camouflage base is already begun from the manufacturer. The second came with a POF (Precision Ordnance Factory) Predator rail adapter system. This rail mount system has four MIL-STD-1913 rails, enabling the user to mount optics and other accessories. The Predator also fully 'free-floats' the barrel, enhancing the accuracy and reliability of the weapon. The Predator is constructed entirely of aircraft grade 6063T6 aluminium, hard-anodised to military specification.
There is no dust cover over the ejection port because the standard port was enlarged to accommodate the 0.50 Beowulf cases. A larger dust cover is under development. Everything else on the Beowulf is standard AR and should be familiar to any of the millions who have trained and qualified with the weapon. The manual of arms is unchanged. All Beowulf carbines except those with the Predator rail option use the recently introduced mid-length handguard that provides an increased gripping area over the short carbine-length items.
Since the 0.50 Beowulf carbines came without sights or accessories apart from a magazine, IDR chose to configure them in a way that would be typical of a US military user. EoTech's latest version of their Holographic Weapon Sight (HWS) was chosen as the primary sight. The HWS is increasingly finding its way into the hands of special forces troops, who mount it on their M4A1 carbines.
Moreover, the Model 552 HWS that IDR used has 10 levels of night-vision reticle in its optic and will function even if the hardened glass window is broken. If there is any glass left, there will be a reticle. The latest Model 552 has been upgraded to be waterproof to 10 m in its standard configuration and 20 m (2 atm) in optional full military configuration. Finally, if the operator decides to go to backup iron sights, the HWS can remain in place; the glass reticle does not interfere with the use of open sights. The US Army recently ordered several thousand HWS units for issue to special operations troops.
For backup iron sights, IDR used a set of Mangonel sights from DPMS (Defense Procurement Manufacturing Services). Mangonel sights are unique in that they lie very low and flat when not in use and rigidly lock into place when erected. Once locked into place, the Mangonel sight will only fold down when the operator chooses to fold it; it will not move under external pressure.
DPMS' Mangonel sights can be used on rifles with a gas block or on rifles with a full-length MIL-STD-1913 rail. The front sight has two notches to accommodate differing heights between rails and gas blocks. The Mangonel sights are fully adjustable for windage and elevation.
The 0.50 Beowulf delivered good accuracy at 50 m and devastated test concrete blocks with single shots. Recoil was about equivalent to a 20-gauge shotgun and was easily manageable. The single-stage trigger broke cleanly at an average of 3 kg with some 'creep' - in other words, typical AR. Although the test carbine was equipped with a 406 mm barrel and muzzle brake, the muzzle blast was less than, expected.
The 0.50 Beowulf is not a target rifle but a weapon for CQB work and it excels as such. Testing entailed firing more than 100 rounds - no stoppage, using standard M16 magazines from various sources, was experienced.
The 0.50 Beowulf functioned perfectly with polymer, steel and aluminium 20- or 30-round magazines. All of the police officers who also fired the 0.50 Beowulf found it easy to handle. (See table for test results.)
The 0.50 Beowulf offers users of M16 rifles or M4 carbines a capability to change quickly from 5.56 mm NATO to a powerful large-calibre rifle or carbine that can be created by adding an upper receiver to an existing lower. Complete rifles are also available for those who prefer them.
The 0.50 Beowulf should prove a valuable and reliable supplement to any agency that requires a large-calibre rifle capable of taking down doors, immobilising vehicles or shooting through barriers while maintaining 5.56 mm NATO weapons for situations which do not demand the power or penetration of the heavy 0.50-calibre bullets.
First thing I noticed too Boney.
An ton of lard should be able to support the recoil of the full-auto 12, let alone the 20 bore, but he's not even taking a decent stance.
Burger eating tosser.
Indeed. But why would cops need full auto anyway ?
Oldsnowy, i'm not reading all that. Just bung a link up to a picture, i'll understand that
It's just a modded Saiga shotgun (available in the UK) with a Hungarian AK forend & a folding butt.
Those burger munchers' gun handling was shoite! Ever heard of "keep your wpn downrange?"
Looks like fun though!
Think of the dirty looks you would cop producing one of those on the grouse moors
Not if you dress right.
Black kevlar jump suit with tasteful matching black PASGT helmet. Black ski mask. Black jackboots. Accessorized with black thigh holster for Glock 17.
You know the spams, use a lump hammer to crack a walnut!
I just use my ass cheeks.
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