6.8mm Remington SPC

484:. The 6.8 SPC delivers 44% more energy than the 5.56mm NATO (M4 configuration) at 100–300 m (330–980 ft). The 6.8mm SPC is not the ballistic equal of the 7.62×51mm NATO cartridge, but it has less recoil, has been said to be more controllable in rapid fire, and is lighter, allowing operators to carry more ammunition than would otherwise be possible with the larger caliber round. The 6.8 mm generates around 2,385 J (1,759 ft⋅lbf) of muzzle energy with a 7.5-gram (115 gr) bullet. In comparison, the 5.56×45mm round (which the 6.8 is designed to replace) generates around 1,796 J (1,325 ft⋅lbf) with a 4.0 g (62 gr) bullet, giving the 6.8 mm a terminal ballistic advantage over the 5.56 mm of 588 J (434 ft⋅lbf). One of the enigmatic features of this cartridge is its being designed for a short-barrel carbine length rifle than the standard rifle length is (usually 41 cm (16 in)). The round only gains about 7.6–10.7 m/s (25–35 ft/s) for every 25 mm of barrel length past the standard 410 mm (16 in) barrel (all else being equal) up to barrel's length around 560–610 mm (22–24 in) with no gain or loss in accuracy. It also does well in rifles with less than 410 mm (16 in) barrels. In recent developments (the period 2008–2012) the performance of the 6.8 SPC has been increased by approximately 61 to 91 m/s (200 to 300 ft/s) by the work of ammunition manufacturer Silver State Armory LLC (SSA) and a few custom rifle builders using and designing the correct chamber and barrel specifications. The 6.8mm Remington SPC cartridge weighs, depending on the manufacturer and load, between 16.8 and 17.6 grams (259 and 272 gr). Also, more recently, 986:. However the cartridge was not used by conventional US military personnel. It was not adopted for widespread use due to resistance from officials. The 6.8 SPC was designed for better terminal effectiveness at the shorter ranges of urban combat experienced in Iraq. When fighting in Afghanistan began to intensify, engagements began taking place at greater distances, where the 6.8 SPC begins to falter. Experiments suggested that the comparatively short 6.8 mm bullets became ineffective at longer ranges. In 2007, both the 42: 439:-aligned countries. The cartridge was the result of the Enhanced Rifle Cartridge Program. The 6.8 SPC (6.8×43mm) was initially developed by Master Sergeant Steve Holland and Chris Murray, a United States Army Marksmanship Unit gunsmith, to offer superior downrange lethality over the 5.56 NATO/.223 Remington in an M16-pattern service rifle with minimal loss of magazine capacity and a negligible increase in recoil. 1049:. By 2007, most major manufacturers of AR-15-type rifles for the civilian gun market were offering rifles in this caliber. Dedicated AR upper receiver assemblies chambered for the round are produced by a number of smaller firms, including Daniel Defense. Ruger Firearms no longer produces a 6.8 mm for their 1057:

hunter and tactical models utilize the newer chamber (SPC II) and specified twist rates to accommodate higher pressure loadings, as well as upper receivers in left-handed configurations. Rock River Arms has an LAR-6.8 X Series rifle and uppers.

1005:– which uses the 6.8mm Remington SPC – as an authorized alternative to their duty weapon. In 2010 the Jordanian state-owned arms manufacturer KADDB announced that they would be producing 6.8 mm rifles and carbines for the 496:(ATK) introduced a new AR-15 designed for the 6.8 SPC which allows for a proprietary 6.8 Magpul P-mags and an overall cartridge length of 5.9 cm (2.32 in). The personal defense weapon (PDW) known as the " 1676: 465:

exterior and terminal ballistic testing, but a 7 mm projectile had the best terminal performance. The combination of the cartridge case, powder load, and projectile easily outperformed the

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and the Saudi Royal Guard for around 36,000 Six8 PDWs and an undisclosed amount of ATK/Federal XD68GD (90gr Gold Dot "training" ammo) and proprietary Magpul 6.8 Pmags specifically for the

1590: 1192:"Silver State Armory specializes in 6.8 SPC Ammunition, 115gr OTM, and custom brass cases – 6.8 Ammunition, 6.8 SPC Ammunition, SSarmory.com, SilverStateArmory.com" 1498: 1673: 1697: 1279: 1167: 1136: 1544: 1406: 1217:"Hornady Manufacturing Company :: Ammunition :: Rifle :: Choose by Caliber :: 6.8mm SPC :: 6.8mm SPC 120 GR SST" 1381: 473:

Soviet cartridges, with the new cartridge's muzzle velocity proving to be about 61 m/s (200 ft/s) faster than the 7.62 x 39.

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Typical trajectory information from carbines with drop and velocity calculated at sea level with a 91 m (100 yd) zero.

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In tests comparing various caliber bullets using a .30 Remington parent case, Holland and Murray determined that a 6.5 mm

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rifles after diminished performance from the 5.56 NATO when the M16A4 was changed from the rifle configuration to the current

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While there are many rumors of evaluations of the cartridge by several major federal and local law enforcement agencies, the

1428: 1884: 1688: 1564: 1889: 1334: 998: 1502: 1071: 1879: 1717: 1160: 1131: 1707: 1059: 1637: 500:" is SPC II w 1:250 mm (10 in) twist and is able to use all current 6.8 SPC factory ammunition. 388: 1074:

delivered a 6.8 SPC II conversion kit to the market as of October 2018. Ruger Firearms chambered their

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By late 2004 the 6.8×43mm SPC was said to be performing well in the field against enemy combatants in

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projectile had the best accuracy and penetration, with historical data going back for decades of

17: 374: 1810: 1067: 477: 1385: 1826: 1769: 1725: 1499:"Hornady : Law Enforcement | Products | 6.8MM SPC - 6.8MM SPC 110gr. V-MAX?" 424: 380: 1463: 8: 1018: 994:

decided not to field weapons chambered in 6.8 mm due to logistical and cost issues.

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family of rifles and carbines that are currently in service with the U.S. Armed Forces.

1242:"6.8 SPC 110 grain Sierra Pro Hunter Ammunition, 20 rounds/box., SilverStateArmory.com" 1070:

offers the XCR-L in 6.8, which can be easily converted between 6.8, 5.56, and 7.62×39.

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in bore diameter. It uses the same diameter bullet (usually not the same mass) as the

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The first major manufacturer to offer a 6.8mm Remington SPC-chambered version of the

991: 1101:, similar cartridge developed to approximate both 7.62×51mm and 5.56×45mm cartridges 432: 408: 404: 47: 1660: 1523: 1484: 1805: 1747: 1692: 1680: 1435: 798:

780 m/s (2,550 ft/s) – Hornady Law Enforcement "tactical" factory load

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820 m/s (2,700 ft/s) – Hornady Law Enforcement "tactical" factory load

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ranch rifle in this round for several years; however, it has been discontinued.

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The 6.8mm Remington SPC was designed to perform better in short-barreled

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cartridge in short barreled rifles (SBR) and carbines. Based on the

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732 m/s (2,401 ft/s) – SSA factory load. (Discontinued)

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790 m/s (2,600 ft/s) – Wilson "combat" factory load

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840 m/s (2,750 ft/s) – Wilson "combat" factory load

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Not a private endeavor or fully sanctioned government project

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940 m/s (3,070 ft/s) – SSA "tactical" factory load

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930 m/s (3,050 ft/s) – Federal(ATK) "tac/mil" load

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970 m/s (3,180 ft/s) – SSA "tactical" factory load

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790 m/s (2,600 ft/s) – Wilson Combat factory load

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880 m/s (2,900 ft/s)- Federal(ATK) "tac/mil" load

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cartridge currently in service with the armed forces of all

1524:"110 gr. Hornady BTHP, 2600 FPS - 16" Barrel-Wilson Combat" 1046: 1010: 790:

810 m/s (2,650 ft/s) – SSA "combat" factory load

586:

850 m/s (2,800 ft/s) – SSA "combat" factory load

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870 m/s (2,840 ft/s) – Silver State Armory (SSA)

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820 m/s (2,700 ft/s)- Silver State Armory (SSA)

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850 m/s (2,800 ft/s)- Silver State Armory (SSA)

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Muzzle velocity from a 410-millimeter (16 in) barrel

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Muzzle velocity from a 510-millimeter (20 in) barrel

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850 m/s (2,800 ft/s) – Remington Premier Match

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Muzzle velocity from a 610-millimeter (24 in) barrel

1112:, similar cartridge developed during the 1940s in the UK 977: 820: 710:

800 m/s (2,625 ft/s)- Remington Premier Match

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820 m/s (2,700 ft/s)- Remington Premier Match

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that would be accommodated by the magazine wells of the

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The 6.5×40 Cartridge: Longer Reach for the M4 & M16

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7.5-gram (115 gr) Full metal jacket boat tail

1267:"Not So Special: A Critical View of the 6.8mm SPC -" 559:

7.5-gram (115 gr) Boat tail hollow point (BTHP)

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List of individual weapons of the U.S. Armed Forces

803:7.1-gram (110 gr) BTHP OTM & Barnes TSX 1871: 1708:Sharper Shooting: Upgrading Ammunition Lethality 1452: 591:7.1-gram (110 gr) BTHP OTM & Barnes TSX 427:was designed to address the deficiencies of the 1593:. Army Times Publishing Company. Archived from 1118:, similar cartridge developed in 1923 in the US 747:7.5-gram (115 gr) Sierra Match King (SMK) 446:case, which was modified in length to fit into 1617:"LWRC rifles to be license-produced in Jordan" 1305: 1001:has allowed individual agents to purchase the 567:7.5-gram (115 gr) Sierra Match King (SMK) 1733: 345:Test barrel length: 410 mm (16 in) 330:) Barnes TSX with "tactical" factory SSA load 908:6.8×43mm SPC 7.1 g (110 gr) V-MAX 677:806 m/s (2,645 ft/s) – Doubletap 669:830 m/s (2,710 ft/s) – Doubletap 661:855 m/s (2,805 ft/s) – Doubletap 653:910 m/s (2,980 ft/s) – Doubletap 650:5.8-gram (90 gr) Bonded Defense JSP 645:880 m/s (2,880 ft/s) – Doubletap 1740: 1726: 888:6.8×43mm SPC 7.5 g (115 gr) SMK 442:The program started the design by using a 699:7.1-gram (110 gr) Nosler Accubond 666:7.1-gram (110 gr) Nosler Accubond 658:6.5-gram (100 gr) Nosler Accubond 626:7.1-gram (110 gr) Nosler Accubond 355:6.8mm Remington Special Purpose Cartridge 948:7.62×51mm 10.9 g (168 gr) SMK 795:7.1-gram (110 gr) Hornady BTHP TAP 393:United States Special Operations Command 1848:Third generation derivatives (based on 1588: 1028: 848:5.56×45mm 3.6 g (55 gr) M193 543:7.1-gram (110 gr) Hornady BTHP TAP 14: 1872: 1591:"Corps to pass on Army upgrades to M4" 868:5.56×45mm 5.0 g (77 gr) OTM 511:7.1-gram (110 gr) Nosler Accubond 1721: 1579:– SAdefensejournal.com, 26 March 2014 1384:. Rifleshootermag.com. Archived from 1311: 1155: 1153: 1151: 978:Military and law enforcement adoption 821:Comparison to other military calibers 771:5.8-gram (90 gr) Speer Gold Dot 758:785 m/s (2,575 ft/s) – SSA 739:7.1-gram (110 gr) Hornady V-MAX 734:870 m/s (2,840 ft/s) – SSA 726:900 m/s (2,950 ft/s) – SSA 718:920 m/s (3,030 ft/s) – SSA 642:6.2-gram (95 gr) Barnes TTSX 554:831 m/s (2,725 ft/s) – SSA 538:910 m/s (2,980 ft/s) – SSA 530:940 m/s (3,100 ft/s) – SSA 387:in collaboration with members of the 1379: 1009:. There is also a contract between 723:5.5-gram (85 gr) Nosler E-Tip 685:910 m/s (2,980 ft/s)- SSA 607:5.8-gram (90 gr) Speer Gold Dot 575:7.1-gram (110 gr) Hornady V-MAX 403:cartridge, it is midway between the 1713:First Look: The 6.8mm Remington SPC 1426: 731:5.8-gram (90 gr) Nosler BSB 682:5.8-gram (90 gr) Speer TNT 24: 1567:– Strategypage.com, 8 January 2012 1148: 999:US Drug Enforcement Administration 843:370 m (400 yd) velocity 837:180 m (200 yd) velocity 811:9.1-gram (140 gr) Berger VLD 779:6.2-gram (95 gr) Barnes TTSX 763:5.5-gram (85 gr) Barnes TSX 715:5.5-gram (85 gr) Barnes TSX 527:5.5-gram (85 gr) Nosler E-Tip 25: 1901: 1654: 1638:"Information on the 6.8 SPC Mini" 1053:piston-driven AR-15 variant. The 755:7.5-gram (115 gr) OTM (FMJ) 535:5.8-gram (90 gr) Nosler BSB 1674:Remington Ammunition Information 1619:. Thefirearmblog.com. 2010-05-13 1161:"C.I.P. TDCC sheet 6,8 Rem. SPC" 599:5.5-gram (85 gr) Barnes TSX 551:7.5-gram (115 gr) OTM (FMJ) 336:1,780 ft⋅lbf (2,410 J) 317:1,525 ft⋅lbf (2,068 J) 298:1,612 ft⋅lbf (2,186 J) 279:1,694 ft⋅lbf (2,297 J) 40: 1661:Definitive history of 6.8 SPC- 1630: 1609: 1582: 1570: 1565:Another 7.62mm Bullet For M-16s 1558: 1537: 1516: 1491: 1477: 1420: 1399: 1373: 1352: 1337:. Wilson Combat. Archived from 1173:from the original on 2018-04-13 1124:, 6.8mm AR-15 wildcat based on 972: 963:576 m/s (1,891 ft/s) 957:681 m/s (2,235 ft/s) 951:790 m/s (2,600 ft/s) 943:404 m/s (1,324 ft/s) 937:545 m/s (1,787 ft/s) 931:700 m/s (2,300 ft/s) 923:552 m/s (1,811 ft/s) 917:673 m/s (2,208 ft/s) 911:810 m/s (2,650 ft/s) 903:511 m/s (1,677 ft/s) 897:653 m/s (2,143 ft/s) 891:810 m/s (2,650 ft/s) 883:550 m/s (1,810 ft/s) 877:675 m/s (2,216 ft/s) 871:817 m/s (2,679 ft/s) 863:531 m/s (1,743 ft/s) 857:717 m/s (2,353 ft/s) 851:937 m/s (3,073 ft/s) 750:810 m/s (2,650 ft/s) 742:810 m/s (2,650 ft/s) 578:850 m/s (2,800 ft/s) 570:850 m/s (2,800 ft/s) 562:850 m/s (2,800 ft/s) 1327: 1284: 1273: 1259: 1244:. Ssarmory.com. Archived from 1234: 1209: 1194:. Ssarmory.com. Archived from 1184: 1132:List of AR platform cartridges 1090:, 6.8 SPC derivative cartridge 840:370 m (400 yd) drop 834:180 m (200 yd) drop 418: 333:3,070 ft/s (940 m/s) 314:2,500 ft/s (760 m/s) 295:2,460 ft/s (750 m/s) 276:2,575 ft/s (785 m/s) 232:55,000 psi (380 MPa) 220:58,700 psi (405 MPa) 13: 1: 1784:Second generation derivatives 1219:. Hornady.com. Archived from 1060:Microtech Small Arms Research 940:1,370 mm (53.8 in) 1758:First generation derivatives 1748:Cartridges derived from the 1663:The 6.8 SPC, Is it all that? 1362:. Demigodllc.com. 2006-07-31 1062:offers their version of the 787:7.1-gram (110 gr) SCHP 184:2.260 in (57.4 mm) 176:1.687 in (42.8 mm) 160:0.422 in (10.7 mm) 152:0.422 in (10.7 mm) 144:0.402 in (10.2 mm) 27:Intermediate rifle cartridge 7: 1885:Pistol and rifle cartridges 1081: 960:820 mm (32.3 in) 920:790 mm (31.1 in) 900:900 mm (35.4 in) 880:830 mm (32.7 in) 860:710 mm (27.8 in) 707:7.5-gram (115 gr) OTM 634:7.5-gram (115 gr) OTM 583:7.1-gram (110 gr) SCHP 389:U.S. Army Marksmanship Unit 168:0.049 in (1.2 mm) 136:0.306 in (7.8 mm) 128:0.270 in (6.9 mm) 120:0.277 in (7.0 mm) 10: 1906: 519:7.5-gram (115 gr) OTM 1890:Remington Arms cartridges 1847: 1824: 1790: 1783: 1757: 1382:"The 6.8mm Remington SPC" 1380:Paul, Gary (2011-01-04). 954:86 mm (3.4 in) 934:84 mm (3.3 in) 914:84 mm (3.3 in) 894:89 mm (3.5 in) 874:84 mm (3.3 in) 854:56 mm (2.2 in) 344: 335: 316: 297: 278: 259: 256: 253: 249: 245: 241: 236: 224: 212: 204: 188: 180: 172: 164: 156: 148: 140: 132: 124: 116: 105: 95: 90: 82: 68: 63: 56:Place of origin 55: 39: 32: 1142: 1039:Barrett Firearms Company 395:to possibly replace the 1880:Paramilitary cartridges 1526:. Shopwilsoncombat.com 383:that was developed by 141:Shoulder diameter 34:6.8×43mm Remington SPC 1068:Robinson Armament Co. 237:Ballistic performance 1827:6.8 mm Remington SPC 1770:6.8 mm Remington SPC 1703:Gunblast.com article 1640:. Ruger-firearms.com 1429:"LWRCI's Great SIX8" 1316:. Globalsecurity.org 1314:"5.56-mm Cartridges" 1029:Semiautomatic action 117:Bullet diameter 1811:9×25mm Super Auto G 1752:and its derivatives 1545:"6.8mm SPC article" 1019:Alliant Techsystems 494:Alliant Techsystems 429:terminal ballistics 415:hunting cartridge. 311:) Sierra Pro Hunter 273:) Full Metal Jacket 200:(2.26–2.39 cm) 181:Overall length 1691:2019-06-16 at the 1679:2007-09-30 at the 1427:Fortier, David M. 984:special operations 225:Maximum pressure ( 213:Maximum pressure ( 165:Rim thickness 149:Base diameter 133:Neck diameter 125:Land diameter 64:Production history 1867: 1866: 1843: 1842: 1485:"6.8 SPC WC Ammo" 992:U.S. Marine Corps 967: 966: 818: 817: 689: 688: 614: 613: 351: 350: 340: 339: 157:Rim diameter 16:(Redirected from 1897: 1788: 1787: 1742: 1735: 1728: 1719: 1718: 1649: 1648: 1646: 1645: 1634: 1628: 1627: 1625: 1624: 1613: 1607: 1606: 1604: 1602: 1586: 1580: 1574: 1568: 1562: 1556: 1555: 1553: 1552: 1547:. Demigodllc.com 1541: 1535: 1534: 1532: 1531: 1520: 1514: 1513: 1511: 1510: 1501:. Archived from 1495: 1489: 1488: 1481: 1475: 1474: 1472: 1471: 1462:. Archived from 1456: 1450: 1449: 1447: 1446: 1440: 1434:. Archived from 1433: 1424: 1418: 1417: 1415: 1414: 1409:. Demigodllc.com 1403: 1397: 1396: 1394: 1393: 1377: 1371: 1370: 1368: 1367: 1356: 1350: 1349: 1347: 1346: 1331: 1325: 1324: 1322: 1321: 1309: 1303: 1302: 1300: 1299: 1294:. Chuckhawks.com 1288: 1282: 1277: 1271: 1270: 1263: 1257: 1256: 1254: 1253: 1238: 1232: 1231: 1229: 1228: 1213: 1207: 1206: 1204: 1203: 1188: 1182: 1181: 1179: 1178: 1172: 1165: 1157: 831:Muzzle velocity 825: 824: 696: 695: 623: 622: 508: 507: 254:Bullet mass/type 251: 250: 205:Primer type 173:Case length 96:Parent case 46:6.8 SPC (left), 44: 35: 30: 29: 21: 1905: 1904: 1900: 1899: 1898: 1896: 1895: 1894: 1870: 1869: 1868: 1863: 1839: 1820: 1779: 1753: 1746: 1693:Wayback Machine 1681:Wayback Machine 1657: 1652: 1643: 1641: 1636: 1635: 1631: 1622: 1620: 1615: 1614: 1610: 1600: 1598: 1587: 1583: 1575: 1571: 1563: 1559: 1550: 1548: 1543: 1542: 1538: 1529: 1527: 1522: 1521: 1517: 1508: 1506: 1497: 1496: 1492: 1483: 1482: 1478: 1469: 1467: 1458: 1457: 1453: 1444: 1442: 1438: 1431: 1425: 1421: 1412: 1410: 1405: 1404: 1400: 1391: 1389: 1378: 1374: 1365: 1363: 1358: 1357: 1353: 1344: 1342: 1333: 1332: 1328: 1319: 1317: 1310: 1306: 1297: 1295: 1290: 1289: 1285: 1278: 1274: 1269:. 4 April 2015. 1265: 1264: 1260: 1251: 1249: 1240: 1239: 1235: 1226: 1224: 1215: 1214: 1210: 1201: 1199: 1190: 1189: 1185: 1176: 1174: 1170: 1163: 1159: 1158: 1149: 1145: 1084: 1041:, offering the 1031: 980: 975: 823: 694: 621: 506: 421: 413:.270 Winchester 346: 197: 192:34.8–36.9 51: 33: 28: 23: 22: 15: 12: 11: 5: 1903: 1893: 1892: 1887: 1882: 1865: 1864: 1862: 1861: 1855: 1853: 1845: 1844: 1841: 1840: 1838: 1837: 1831: 1829: 1822: 1821: 1819: 1818: 1813: 1808: 1803: 1797: 1795: 1785: 1781: 1780: 1778: 1777: 1772: 1767: 1761: 1759: 1755: 1754: 1745: 1744: 1737: 1730: 1722: 1716: 1715: 1710: 1705: 1700: 1698:Defense Review 1695: 1683: 1671: 1666: 1656: 1655:External links 1653: 1651: 1650: 1629: 1608: 1581: 1569: 1557: 1536: 1515: 1490: 1476: 1451: 1419: 1398: 1372: 1351: 1326: 1304: 1283: 1272: 1258: 1233: 1208: 1183: 1146: 1144: 1141: 1140: 1139: 1134: 1129: 1122:.277 Wolverine 1119: 1113: 1107: 1102: 1096: 1091: 1083: 1080: 1045:and later the 1030: 1027: 1007:Jordanian Army 979: 976: 974: 971: 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6.8mm Remington SPC

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