.277 Fury

6.8×51mm rifle cartridge by SIG Sauer June 2026 .277 Fury XM1186.jpg XM1186 General Purpose United States Centerfire rifle 2019 SIG Sauer 2019–present Rimless, bottleneck .2780 .2700 .3100 .4611 .4703 .4720 .0540 2.015 2.825 1 in 7 in mm 80000 SAAMI 113 Hybrid Ball 3200 2569 135 Brass Elite Ball 2750 2267 135 Hybrid Match 3000 2694 140 Hybrid Hunting 2950 2706 155 Hybrid Match 3000 3097 16 inch (406 mm) and 24 inch (610 mm) for 155gr Hybrid Match 50px The .277 Fury or 6.8×51mm Common CartridgeBeckstrand Tom 19 February 2020 NGSW Update: Push for the 6.8mm Continues https://www.gunsandammo.com/editorial/ngsw-update-push-68mm-continues/372371 live https://web.archive.org/web/20200224112505/http://www.gunsandammo.com/editorial/ngsw-update-push-68mm-continues/372371 24 February 2020 Guns & Ammo20 April 2022 Next Generation Squad Weapon Winner: Army Picks SIG SAUER https://www.tactical-life.com/firearms/next-generation-squad-weapon-winner/ live https://web.archive.org/web/20230615232827/https://www.athlonoutdoors.com/article/next-generation-squad-weapon-winner/ 15 June 2023 Athlon Outdoors (designated as the .277 SIG Fury by SAAMI)23 September 2020 SAAMI .277 SIG FURY cartridge and chamber drawings https://saami.org/wp-content/uploads/2020/11/277-Sig-Public-Introduction-Orig-2020-11-11.pdf dead https://web.archive.org/web/20231127162923/https://saami.org/wp-content/uploads/2020/11/277-Sig-Public-Introduction-Orig-2020-11-11.pdf 27 November 2023 25 November 2020 Sporting Arms and Ammunition Manufacturers' Institute is a centerfire, rimless, bottlenecked rifle cartridge announced by SIG Sauer in late 2019.Langston Jay 20 December 2019 277 SIG Fury: SIG Sauer Unveils New Caliber with Hybrid Case Design https://www.tactical-life.com/gear/ammo/277-sig-fury-hybrid-case-design/ dead https://web.archive.org/web/20231003041531/https://www.athlonoutdoors.com/article/277-sig-fury-hybrid-case-design/ 3 October 2023 17 March 2020 Athlon Outdoors Its hybrid, three-piece cartridge case has a steel case-head and brass body connected by an aluminum locking washer to support the high chamber pressure of 80000 psi MPa on. Background The cartridge was designed by SIG Sauer for the United States Army's Next Generation Squad Weapon Program (NGSW).SIG Cross Rifle https://xtremegunsandammo.com/product-category/rifles-for-sale/sig-sauer-rifles-for-sale/sig-cross-rifle/ live https://web.archive.org/web/20230711202300/https://xtremegunsandammo.com/rifles-for-sale/sig-sauer-rifles-for-sale/sig-cross-rifle/ 11 July 2023 8 March 2020 Xtreme Guns and Ammo It is dimensionally similar to the 7.62×51mm NATO service cartridge. In December 2019, the cartridge was announced for non-military usage, along with the SIG Sauer CROSS bolt-action rifle. As a short-action rifle cartridge (cartridges having an overall length of 2.750 in mm 2 or less), increased internal ballistic performance for its cartridge-case volume is accomplished by applying high gas-pressure.Eger Chris 19 December 2019 New SIG Sauer CROSS Rifle, Company's 1st U.S. Made Bolt-Action Hunting Rifle https://www.guns.com/news/2019/12/19/new-sig-sauer-cross-rifle-companys-1st-u-s-made-bolt-action-hunting-rifle live https://web.archive.org/web/20230615232822/https://www.guns.com/news/2019/12/19/new-sig-sauer-cross-rifle-companys-1st-u-s-made-bolt-action-hunting-rifle 15 June 2023 8 March 2020 guns.com In 2020, it was accepted by the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI) as a new rifle cartridge and chambering.Moss Matthew 21 November 2020 SAAMI Announces Acceptance of Three New Cartridges from SIG Sauer, Weatherby and Winchester https://www.thefirearmblog.com/blog/2020/11/18/saami-announces-acceptance-of-three-new-cartridges/ live https://web.archive.org/web/20230615232831/https://www.thefirearmblog.com/blog/2020/11/18/saami-announces-acceptance-of-three-new-cartridges/ 15 June 2023 25 November 2020 The Firearm Blog In 2022, SIG Sauer announced that it intends to commercially chamber the SIG MCX Spear semi-automatic rifle in .277 Fury.Graves Eric 13 January 2022 SIG SAUER Announces Commercial Variant of Army Next Generation Squad Weapon (NGSW) MCX-SPEAR and 277 SIG FURY Ammunition https://soldiersystems.net/2022/01/13/sig-sauer-announces-commercial-variant-of-army-next-generation-squad-weapon-ngsw-mcx-spear-and-277-sig-fury-ammunition/ live https://web.archive.org/web/20230927105516/https://soldiersystems.net/2022/01/13/sig-sauer-announces-commercial-variant-of-army-next-generation-squad-weapon-ngsw-mcx-spear-and-277-sig-fury-ammunition/ 27 September 2023 23 April 2022 Soldier Systems Specifications yield strength is based on Young's modulus, but the relevant modulus for how much pressure a cartridge can withstand is the bulk modulus - the material is being expanded, not pulled September 2026 The cartridge uses a case that is the same length and diameter as the .308 Winchester. It has a very high chamber pressure (maximum average pressure, MAP) of 80000 psi MPa on in the SAAMI standard.Spomer Ron 26 February 2020 The New 27 Nosler and .277 Sig Fury Are Creating a .277 Cartridge Comeback https://www.outdoorlife.com/story/guns/rise-of-the-270s-rifle-ammo/ live https://web.archive.org/web/20230929195600/https://www.outdoorlife.com/story/guns/rise-of-the-270s-rifle-ammo/ 29 September 2023 17 March 2020 outdoorlife.com It also means that the .277 Fury is normally chambered in small arms that are capable of handling the accompanying bolt thrust safely. The SAAMI warns that MAP levels greater than 65000 psi MPa on may present an increased risk of unsafe cartridge case or firearm rupture and thus will require new cartridge case and firearm designs that depart from traditional manufacturing practices, including the use of materials, construction methods, production lines, and other important design criteria.Maccar David 16 February 2017 The End of Brass Cartridge Cases? https://www.range365.com/end-brass-cartridge-cases/ dead https://web.archive.org/web/20220603115009/https://www.range365.com/end-brass-cartridge-cases/ 3 June 2022 29 November 2020 range365.comDykstra Greg 19 July 2016 Understanding Pressure https://www.primalrights.com/library/articles/understanding-pressure live https://web.archive.org/web/20230616085156/https://www.primalrights.com/library/articles/understanding-pressure 16 June 2023 29 November 2020 primalrights.com On ammunition intended to exceed 65000 psi MPa on, SIG uses a "hybrid" cartridge case design. Each "hybrid" case consists of a stainless steel base coupled to a brass body via an aluminium locking washer.Sim Levi 22 December 2019 .277 SIG Fury Demystified https://www.gunsamerica.com/digest/277-sig-fury-demystified/ live https://web.archive.org/web/20230615232823/https://www.gunsamerica.com/digest/277-sig-fury-demystified/ 15 June 2023 17 March 2020 gunsamerica.com Stainless steel has a significantly higher yield strength than brass, allowing the use of higher maximum average pressure (MAP) chamber-pressure levels. 16 November 2020 SAAMI Certifies .277 Sig Fury Cartridge with Incredible Chamber Pressure https://www.pottsprecision.com/blog/saami-approves-277-sig-fury dead https://web.archive.org/web/20220603160432/https://www.pottsprecision.com/blog/saami-approves-277-sig-fury 3 June 2022 29 April 2022 pottsprecision.com The higher MAP enables a 135 gr g on projectile to achieve a muzzle velocity of 3000 ft/s m/s from a 16 in 0 on barrel, compared to 2750 ft/s m/s for a 135-grain projectile in a brass-case reduced-power "practice" load. Ammunition types SIG's commercial catalogue contains both high-power loads using a hybrid cartridge and reduced-power "practice" loads using a brass cartridge. Commercial types include: 113 gr g on 2 hybrid ball (solid copper) described as "Next Gen Ammunition, Magnum Performance", G1 ballistic coefficient (BC) of 0.330. SIG describes this ammunition as the one developed for the US Next Generation Weapon Systems. Only available in 460-round cans or 920-round crates, unlike the others, which are sold as 20-round boxes.6.8x51, 113GR Hybrid Ball - Can (460rnds) https://www.sigsauer.com/6-8x51mm-hybrid-ball-can.html www.sigsauer.com en 135 gr g on 2 brass elite ball described as "Elite Match Grade FMJ Ammunition", G1 BC of 0.475. Reduced-power load classified as "practice".277 SIG FURY, 135GR FMJ, ELITE BALL https://www.sigsauer.com/elite-ball-fmj-277-sig-fury.html www.sigsauer.com en Discontinued 135 gr g on 2 hybrid "match grade", G1 BC ≈ 0.488. 16 November 2020 277 SIG FURY, 2 Other Cartridges Accepted by SAAMI https://www.tactical-life.com/gear/ammo/277-sig-fury-accepted-saami/ dead https://web.archive.org/web/20230615232827/https://www.athlonoutdoors.com/article/277-sig-fury-accepted-saami/ 15 June 2023 29 November 2020 Athlon Outdoors Same published G1 BC as Sierra .277 135 gr g on 2 HPBT MatchKing.Ballistics Coefficients Charts - Rifle https://www.sierrabullets.com/wp-content/uploads/2019/10/BC-chart-rifle.pdf live https://web.archive.org/web/20231121142842/https://www.sierrabullets.com/wp-content/uploads/2019/10/BC-chart-rifle.pdf 21 November 2023 Sierra Bullets Discontinued 140 gr g on 2 hybrid "hunter tipped", G1 BC of 0.508. Same published G1 BC as Sierra .277 140 gr g on 2 TGK GameKing. 150 gr g on 2 hybrid hunter described as "featuring NOSLER Accubond bonded core bullets", G1 BC of 0.500.277 SIG FURY, 150GR HYBRID HUNTER https://www.sigsauer.com/277-sig-fury-150-hybrid-hunter.html www.sigsauer.com en 155 gr g on 2 hybrid match described as "featuring Sierra MatchKing HPBT bullet", G1 BC of 0.549.277 SIG FURY, 155GR HYBRID MATCH https://www.sigsauer.com/277-sig-fury-hybrid-match.html www.sigsauer.com en Do note that ballistic coefficients are somewhat debatable. 17 January 2012 Comparing Advertised Ballistic Coefficients with Independent Measurements https://mittelkaliber.ch/wp-content/uploads/2021/02/BC_Vergleich_1.pdf dead https://web.archive.org/web/20230321183046/https://mittelkaliber.ch/wp-content/uploads/2021/02/BC_Vergleich_1.pdf 21 March 2023 30 April 2022 Schweizerische Mittelkaliber-Schützengesellschaft Performance SIG Sauer claims that the cartridge has performance superior to the 6.5mm Creedmoor, exhibiting 6 to 9 ft m 1 less bullet drop at 1000 yd m 0, while delivering 20 to 25 percent greater energy.https://blog.scopelist.com/wp-content/uploads/Sig-sauer/Sig-Sauer/Sig-Sauer-Product-Catalog-2020.pdf#page=73 SIG Sauer Product Catalog 2020 SIG Sauer 70–71 March 17, 2020 US Army award and designation as 6.8 common cartridge thumb|An XM250 automatic rifle with inserted ammunition belt In January 2019, the United States Army began the Next Generation Squad Weapon Program to find replacements for the M4 carbine and M249 light machine gun. On April 19, 2022, the United States Army announced that it had selected SIG Sauer to build the M7 rifle to partly replace the M4 carbine, while the M250 automatic rifle was to replace the M249 SAW in the LMG role. In both cases, it had selected the company's Fury ammunition, using government-provided projectiles and vendor-designed cartridges for the new weapon. 19 April 2022 Army awards Next Generation Squad Weapon contract https://www.army.mil/article/255827/army_awards_next_generation_squad_weapon_contract live https://web.archive.org/web/20240111094638/https://www.army.mil/article/255827/army_awards_next_generation_squad_weapon_contract 11 January 2024 19 April 2022 U.S. Army 21 January 2022 ASIG Ammunition Produced & Delivered Over 825,000 Rounds of 6.8x51mm Composite Case Ammo for US Army Next Generation Squad Weapons Program Prototype Test #2 https://soldiersystems.net/2021/01/27/sig-ammunition-produced-rounds-of-6-8x51mm/ live https://web.archive.org/web/20230615232823/https://soldiersystems.net/2021/01/27/sig-ammunition-produced-rounds-of-6-8x51mm/ 15 June 2023 22 April 2022 Soldier Systems The M7 was designed to fire the 6.8×51mm SIG Fury cartridge in response to concerns that improvements in body armor would diminish the effectiveness of the 5.56×45mm NATO round used in the M4 carbine and M249 SAW and increase their lethality and effective ranges compared to common, battlefield rounds such as the 5.56×45mm NATO and 7.62×51mm NATO.South Todd 19 April 2022 Army chooses Sig Sauer to build its Next Generation Squad Weapon https://www.armytimes.com/news/your-army/2022/04/19/army-chooses-sig-sauer-to-build-its-next-generation-squad-weapon/ live https://archive.today/20230518053458/https://www.armytimes.com/news/your-army/2022/04/19/army-chooses-sig-sauer-to-build-its-next-generation-squad-weapon/ 18 May 2023 20 April 2022 Army TimesSchogol Jeff 19 April 2022 Army selects Sig Sauer to produce Next Generation Squad Weapon and ammo https://taskandpurpose.com/military-tech/army-selects-sig-sauer-next-generation-squad-weapon/ https://web.archive.org/web/20220531011525/https://taskandpurpose.com/military-tech/army-selects-sig-sauer-next-generation-squad-weapon/ 31 May 2022 20 April 2022 Task & Purpose en-USSensiba Jennifer 21 April 2022 The XM5 and 6.8×51 Ammunition Will Be a Decisive Advantage. U.S. Allies Should Adopt It, Too https://www.thetruthaboutguns.com/https-defensereview-com-spikes-tactical-5-45mm-russian-ar-carbine-the-greatest-training-gun-everif-you-have-to-buy-your-own-ammunition-that-is/ live https://web.archive.org/web/20231207200017/https://www.thetruthaboutguns.com/https-defensereview-com-spikes-tactical-5-45mm-russian-ar-carbine-the-greatest-training-gun-everif-you-have-to-buy-your-own-ammunition-that-is/ 7 December 2023 24 April 2022 The Truth about Guns en-USMizokami Kyle 21 April 2022 The Army's Next-Gen Infantry Weapons Will Be More Lethal and More Accurate https://www.popularmechanics.com/military/weapons/a39774920/army-next-gen-infantry-weapons/ https://web.archive.org/web/20220531010329/https://www.popularmechanics.com/military/weapons/a39774920/army-next-gen-infantry-weapons/ 31 May 2022 24 April 2022 Popular Mechanics en-US thumb|243x243px|XM1188 Reduced Range Operational testing of the M7 rifle, XM250 automatic rifle, XM157 fire-control optic-platform unit, and the 6.8×51mm ammunition squad-weaponry was expected to begin in 2024. However, this did not guarantee an actual, widespread following issue.Parsons Dan 20 April 2022 Here's Everything We Now Know About The Army's New Squad Rifles https://www.thedrive.com/the-war-zone/heres-everything-we-now-know-about-the-armys-new-squad-rifles live https://web.archive.org/web/20231127071518/https://www.thedrive.com/the-war-zone/heres-everything-we-now-know-about-the-armys-new-squad-rifles 27 November 2023 30 April 2022 The Drive en-US The military designation for this round is 6.8 common cartridge. The XM1186 is the general-purpose 6.8 mm round, with other versions including reduced-range rounds so that weapons chambered in 6.8 mm can fire on existing ranges designed for the 5.56 mm, marking rounds for force-on-force shooting, and blank and tracer rounds.South Todd 6 October 2023 What's the firepower like for the Army's new rifle? https://www.defensenews.com/news/your-army/2023/10/06/whats-the-firepower-like-for-the-armys-new-rifle-automatic-rifle/ live https://archive.today/20240115010732/https://www.defensenews.com/news/your-army/2023/10/06/whats-the-firepower-like-for-the-armys-new-rifle-automatic-rifle/ 15 January 2024 Defense News US Army solicitation As of March 2022, the United States Army has an ongoing solicitation for an M240 machine gun 6.8×51mm conversion kit for the 7.62×51mm NATO-chambered M240B and M240L general-purpose machine guns.31 March 2022 M240 6.8mm Conversion Kit https://sam.gov/opp/44d479e9fc3f4437bbf017c1f2f61b92/view live https://archive.today/20240115011229/https://sam.gov/opp/44d479e9fc3f4437bbf017c1f2f61b92/view 15 January 2024 sam.gov US ammunition types XM1168 General Purpose (Prototype)Army issues call for new Next Generation Squad Weapon prototypes : https://www.guns.com/news/2019/02/05/army-issues-call-for-new-next-generation-squad-weapon-prototypes Guns.com en XM1184 Special Purpose.PE 0603639A: Tank and Medium Caliber Ammunition FY2021 https://apps.dtic.mil/descriptivesum/Y2021/Army/stamped/U_0603639A_4_PB_2021.pdf The Next Generation Squad Weapons (NGSW) ammunition is split into two initial variants, the General Purpose (GP) and the Special Purpose (SP). The nomenclature for the GP ammunition is XM1186 and the nomenclature for the SP ammunition is XM1184. XM1186 General Purpose. Hybrid.LIGHTEN UP https://www.army.mil/article/277024/lighten_up www.army.mil en 6 June 2024 . Both XM1186 and XM1188 feature a hybrid metal case design consisting of a brass body and steel head, reducing cartridge weight by more than 20% compared with a brass-cased equivalent cartridge. XM1188 Reduced Range.Small Arms Ammunition www.dau.edu https://www.dau.edu/node/243916 www.dau.edu AIN 006-24, INFORMATION AND NEW NSN/DODIC FOR CARTRIDGE, 6.8 MM: GENERAL PURPOSE, XM1186, CARTRIDGE, 6.8 MM: REDUCED RANGE (RR), XM1188, AND CARTRIDGE, 6.8 MM: BLANK, XM1192 NEW Hybrid. XM1192 Blank. References External links New for 2020: SIG Sauer .277 SIG Fury Ammunition via YouTube (Archive) .277 SIG Fury SAAMI Drawing (archived), issued 09/23/2020 Not found in SAAMI Z299.4-2025 standard. Category:SIG Sauer cartridges Category:Pistol and rifle cartridges Category:Military cartridges Category:Weapons and ammunition introduced in 2019