And that is what long-range shooting is all about. Bullet velocity is a very important ingredient of successful long-range shooting. In addition to long-range and anti-materiel sniping, the U.S. military uses .50 BMG weapons to detonate unexploded ordnance from a safe distance. NOTE: This chart shows the expected change in velocity for a change in barrel length of one inch. A former record for a confirmed long-distance kill was set by U.S. Marine sniper Carlos Hathcock in 1967, at a distance of 2,090 metres (2,286 yd);[5] Hathcock used the .50 BMG in an M2 Browning Machine Gun equipped with a telescopic sight. One of them utilizes LeDuc’s equation and was provided by Bill Davis of Tioga Engineering. Average chamber pressure in for this round as listed in TM43-0001-27[8] the U.S. Army Ammunition Data Sheets —Small Caliber Ammunition, not including plastic practice, short cased spotter, or proof/test loads, is 54,923 PSI (378 MPa or 3,787 bar). The third column represents the change as computed using formulas derived by Homer Powley and adapted for small arms internal ballistics by Bill Davis. I used a C7 ballistic coefficient of .520 for this bullet. If we compare a 48″ barrel to the 28″ shorty however, we have increased our predicted velocity by at least 250 fps. "We were abandoned", Macleans 119 (20)", "Hotshot sniper in one-and-a-half mile double kill", http://www.timesonline.co.uk/tol/news/world/afghanistan/article7113916.ece, "British sniper Craig Harrison (The Silent Assassin) breaks record, kills target from 1.5 miles away", http://web.archive.org/web/20101018213332/http://www.nydailynews.com/news/world/2010/05/03/2010-05-03_british_sniper_craig_harrison_the_silent_assassin_breaks_record_kills_target_fro.html, "Army Ammunition Data Sheets for Small Caliber Ammunition", http://web.archive.org/web/20071202134237/http://www.dtic.mil/dticasd/sbir/sbir032/a044a.pdf, http://i381.photobucket.com/albums/oo255/FEDE_EL_SOMALI/1-15.jpg, http://web.archive.org/web/20050513095858/http://www.atk.com/ammo_PDFs/smallcaliber.pdf, Cartridges for Long-Range Sniping Rifles by Anthony G Williams, Janes listing of the FN Herstal .50 cal M3P coaxial weapon system (Belgium), Igman Ammunition Cal. So it is generally accepted this this is the practical maximum effective range for any bullet. One thing I miss about working behind the gun counter is the oddball stuff that comes in once in a while. As a result, theballistic coefficient changes much less with velocity than the C1 BC. The common rifling twist rate for this cartridge is 1 in 15 in (381 mm), with 8 lands and grooves. To answer this question, I used two different internal ballistics programs that predict velocity as a function of barrel length. When the M85 was taken out of service, large stocks of ammunition linked with the M15 link remained in US military storage because of the ease with which linked ammunition can be de-linked and re-linked with different (i.e. My problem is that the upper came with a 30 minute rail. The primer type specified for this ammunition is Boxer primer that has a single centralized ignition point (US and NATO countries). For example, if we compare the 750 grain Hornady A-Max bullet with a 2700 fps muzzle velocity from a 28″ barrel to the same bullet at 2950 fps from a 4 footer, we see some big changes. For those not familiar with LeDuc’s equation, I’ll go into a little detail, but not enough to bore, I hope. It’s kind of flown under the general radar over the years, but it’s popped back on our radar multiple times in the last week. His program also calculates muzzle pressure, and barrel time in milliseconds. With a given case and bullet, there are just two ways to increasevelocity. TacFlow Academy used it in the video to demonstrate the .50 BMG’s “capabilities when deploying for vehicular intrusion protection.”, Then, later in the week, someone brought the new Stormtrooper White model of the CDX-50 to our attention; it’s a thing of beauty. The Barrett M82 .50 caliber rifle and later variants were born during the 1980s and have upgraded the anti-materiel power of the military sniper. A McMillan Tac-50 .50 BMG sniper rifle was used by Canadian Army Corporal Rob Furlong of the PPCLI to achieve what was then the longest-range confirmed sniper kill in history, when he shot a Taliban combatant at 2,430 meters (2,657 yards) during the 2002 campaign in the Afghanistan War. The Stormtrooper White is just, in our opinion, the sexiest of the bunch. Armor-piercing incendiary tracer (APIT) rounds were especially effective against aircraft, and the AP rounds and API rounds were excellent for destroying concrete bunkers, structures, and lighter AFVs. The .50 BMG cartridge is also used in long-range target and sniper rifles, as well as other .50 caliber machine guns. The use in single-shot and semi-automatic rifles has resulted in many specialized match-grade rounds not used in .50 caliber machine guns. The last column is the muzzle pressure for the shorter length. To be able to use this program with the 50 BMG case I extrapolated some information for IMR 5010 powder. DARPA (Defense Advanced Research Projects Agency) has contracted with Lockheed Martin to develop the EXACTO program, including .50-caliber bullets complete with microprocessors and steering vanes that allow the bullet to adjust its trajectory mid-flight to stay on target when the flight path has been altered by uncontrollable variables, as well as weapons that fire these rounds and monitor their flight. [17] Most of the instances of criminal activity cited in the Office of Special Investigations briefing involved the illegal possession of a .50 BMG rifle. There are a few drawbacks to choosing an extra long barrel, however. The rounds intended for machine guns are linked using metallic links. In the #1, 1994 issue of VERY HIGH POWER we looked at how barrel stiffness decreases with length, and as a result potential accuracy possibly degrades too. To say that the numbers are exact would be foolish. Subject to political controversy due to the great power of the cartridge (it is the most powerful commonly available cartridge not considered a destructive device under the National Firearms Act), it remains popular among long-range shooters for its accuracy and external ballistics. Firstly, we need to address the elephant in the room. That custom Stormtrooper White Cerakote finish ties everything together, especially with the snow in the background. Post was not sent - check your email addresses! A skilled sniper can effectively neutralize an infantry unit by eliminating several targets (soldiers or equipment) without revealing his precise location. Using two proven internal ballistics programs, we’ve shown the amount of velocity increase that can be expected from longer barrels. Setting the negative aspects of longer barrels aside, I wondered how much velocity gain could be expected with longer barrels. With the exception of the scope, Cadex makes everything you see in the photos above. I have read the Terms of Use, Privacy Policy, and Cookie Policy, and I hereby agree to those terms. MSRP comes in at approximately $8,400. The API and APIT rounds left a flash, report, and smoke on contact, useful in detecting strikes on enemy targets. We need to be honest, routine kills at those extreme ranges are rare and unique. I’ve chosen 2500 yards as the maximum effective range, as that is about the range at which this bullet drops below the speed of sound. Some articles in other magazines have been published over the years about the equations. In the meantime, for more information, please visit CadexDefence.com. [2] This record was surpassed in 2009 in Afghanistan by a British sniper, though using a .338 Lapua Magnum (8.58×70 mm) rifle.[3][4]. We’re already looking to get one for some video testing. Posted February 28, 2017 in Ammunition, Photo Of The Day with 87 Comments Tags: .17 caliber, .50 BMG, reloading. We will compare the figures for both velocities at 1000, 1500, 2000, and 2500 yards. Velocity Changes Per Inch of Barrel Increase. The specified maximum diameter of an unfired .50 BMG bullet is 0.510-inch (13.0 mm); while this appears to be over the .50 inch (12.7 mm) maximum allowed for non-sporting Title In small arms under the U.S. National Firearms Act, the barrel of a .50 BMG rifle is only .50 inch (12.7 mm) across the rifling lands and slightly larger in the grooves. A .50 BMG round can effectively disable a vehicle when fired into the engine block. Well, that’s because Cadex is Canadian — from Quebec, specifically. Feb 3, 2020, Stay in the know with the latest from the Ballistic newsletter, Umarex Hammer: A .50-Cal, Big Bore Air Rifle for Hunting Big Game, Genesis Arms Gen-12: The 10-Round, AR Shotgun That Uses a .308 Lower, The Semi-Auto, 6.5 Creedmoor RISE Armament 1121XR Easily Hits 1 Mile, Why the YETI Tundra Haul Has Become Our Favorite Wheeled Cooler, You use of this website constitutes and manifests your acceptance of our. Within the United Kingdom, it is legal to own a .50 BMG rifle with a section 1 Firearms Certificate.[18]. John Browning had the idea for this round during World War I in response to a need for an anti-aircraft weapon,[citation needed] based on a scaled-up .30-06 Springfield design,[citation needed] used in a machine gun based on a scaled-up M1919/M1917 design that Browning had initially developed around 1900 (but which was not adopted by the U.S. military until 1917, hence the model designation). The second column is the expected change per inch as computed using LeDuc’s equation. The round's dimensions and ballistic traits are totally different. To illustrate my point, I ran those velocities through an external ballistics program that computes drop, drift, remaining velocities, and energies. Then using an external ballistics program, we were able to show quantitively what that increased velocity meant to downrange performance, including decreased bullet drop, less wind drift, and higher velocity and energy. Under STANAG 4383, it is a standard service cartridge for NATO forces as well as many non-NATO countries. I highly recommend him and his product. The U.S. Coast Guard uses .50 BMG rifles to disable outboard engines from armed helicopters during interdictions. The .50 Browning Machine Gun (.50 BMG) or 12.7×99mm NATO is a cartridge developed for the Browning .50 caliber machine gun in the late 1910s. The values for these two numbers in the accompaning chart are from this program. Using a 28″ long barrel as a practical minimum length, I found that if we increased the length by one inch, on average we could expect a 19 – 21 fps gain in velocity. With its new Stormtrooper White Cerakote pattern, the Cadex Defence CDX-50 Tremor .50 BMG Sniper Rifle is as much a looker as it is a shooter. [22][23], Articles with unsourced statements from November 2014, Articles incorporating text from Wikipedia, Cartridge, Caliber .50, Armor-Piercing-Incendiary, Mk 211 Mod 0, Naval Surface Warfare Center Crane Division, High Explosive Incendiary/Armor Piercing Ammunition, NATO Infantry Weapons Standardization, Per G. Arvidsson, ChairmanWeapons & Sensors Working GroupLand Capability Group 1 - Dismounted Soldier NATO Army Armaments Group, "Friscolanti, Michael (May 15, 2006). My own experience has shown it to be a reliable indicator, too. The other option is to use a longer barrel (having no effect on chamber pressure), utilizing more of the powder gases. TacFlow Academy used it in the video to demonstrate the .50 BMG’s “capabilities … We immediately identified it as the aforementioned Cadex Defence CDX-50.

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