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Ordnance QF 75 mm

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at 500 yards (460 m) and a 30-degree angle of attack, whereas the AP shells of the others penetrated between 57 mm and 76 mm in Normandy during 1944. The AP shell for the 75 mm gun was a 15 lb (6.8 kg) projectile with a couple of ounces (60 g) of HE filling propelled by
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into modified British tanks, the Royal Ordnance factory modified the 6-pounder design by boring out the barrel and adapting the breech to fire the US round. The resulting gun could then be fitted without redesigned tank mountings and dramatically simplified supply since both British-made and
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Externally, the gun was nearly identical to the 6-pounder gun. The 14.9 lb (6.76 kg) HE shell fired at 2,050 ft/s (625 m/s) was found to be the best available and superior to that of the 6-pounder,
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American-made 75 mm guns could use the same ammunition. It gained British tanks a good HE shell but came with an inferior anti-tank round, proving troublesome against heavily armoured German tanks.
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a 2 lb (900 g) charge to 2,000 feet per second (610 m/s). In British service, the AP shell was used without its explosive filling and as such was referred to as "AP Shot M61".
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It was noticed that the US 75 mm cartridge was almost the same diameter as the British 6-pounder case. Instead of having to take the American gun to be fitted
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was found to be markedly superior and a number of Churchills used in Italy had guns scavenged from Sherman tanks and fitted to their turrets to give the
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The QF 75 mm used US ammunition. The shells were "fixed" ammunition, the shell cartridge and projectile being joined together as a complete round.
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Vickers was working on a high velocity 75 mm gun to be fitted to British tanks. This took the cartridge case of the
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Though the 75 mm had a good HE shell, it was still thought that a more powerful close support weapon was needed and the
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of the US 75 mm gun. The design turned out to be too big to fit into the tank that it had been expected to fit.
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mated to the US 75 mm AP and HE shell. With a barrel length of 50 calibres, it would have had about twice the
270:. The decision to equip British tanks with a gun capable of firing HE shells at soft targets was taken by the 194:("6 pdr") 57 mm anti-tank gun to 75 mm, to give better performance against infantry targets similarly to the 928: 1017: 862: 839: 703: 1104: 1094: 1068: 1058: 1053: 1043: 767: 425:, all chiefly anti-tank guns. Against armour, its AP shell was the worst, penetrating only 68 mm of 777: 1048: 782: 316: 370:
An armour-piercing capped projectile with a thin ballistic cap ("windshield") for better aerodynamics.
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full name for the round was "Shell, fixed, HE M48, normal charge" followed by the fuze specification
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Prior to the introduction of the ROQF 75 mm, British tanks had been equipped with first the
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against the Japanese) until the end of the war. While the 75 mm was a conversion from the
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A HE shell for the 6-pounder was in production by the start of the
52: 725: 538: 206:, referring to the use of ammunition where the shell has a fixed 152: 353: 186:, abbreviated to OQF 75 mm, was a British tank gun of the 651:
US Document WO 219/2806, Appendix G to SHAEF/16652/GCT/Arty,
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The ROQF 75 mm was chiefly used on the Churchill and
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Shell HE M48 with either M48A2, M54, M51A4, or M21A4 fuze.
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An Alternative 1930s British Tank Gun - And Its Successor
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Churchill Tank - Vehicle History and Specifications
1117: 642: 348:Bursting charge was 1.49 lb (0.68 kg) 539:Weapons of comparable role, performance and era 393:tanks. The weapon was used in Italy and in the 711: 380:An entirely solid armour-piercing projectile. 1126:World War II artillery of the United Kingdom 718: 704: 645:British and American Tanks of World War II 627:Cromwell Vehicle History and Specification 434:British tank guns of the Second World War 319:was agreed for a limited number of tanks. 246:(57 mm). These guns were designed to fire 643:Chamberlain, Peter; Ellis, Chris (1981). 326: 1118: 466:(AP/T shot) 2.7 lb (1.2 kg) 281:and available in large numbers in the 210:. The gun was also sometimes known as 699: 365:Shot APC M61, with tracer in the base 352:or 1.36 lb (0.62 kg) 50/50 553: : contemporary Soviet tank gun 547: : contemporary German tank gun 485:(AP shot) 6.3 lb (2.9 kg) 375:Shot AP M72, with tracer in the base 254:shells, such as early models of the 190:. It was obtained by boring out the 13: 14: 1152: 674: 1095:BL 12-inch Mk V railway howitzer 559: : contemporary US tank gun 29: 1136:Tank guns of the United Kingdom 1090:BL 9.2-inch Mk XIII railway gun 524:2,950 ft/s (900 m/s) 505:2,050 ft/s (620 m/s) 488:3,000 ft/s (910 m/s) 469:2,650 ft/s (810 m/s) 356:or 1.52 lb (0.69 kg) 298:3 inch 20 cwt anti-aircraft gun 1049:BL 6-inch Mk VII & Mk XXIV 620: 608: 584: 575: 233: 167:2,030 ft/s (620 m/s) 1: 1100:BL 13.5-inch Mk V railway gun 563: 322: 863:BL 4.5-inch medium field gun 242:(40 mm) and then the larger 7: 1105:BL 18-inch railway howitzer 533: 502:14.9 lb (6.8 kg) 222:rdnance (the manufacturer) 132:107.8 in (2.74 m) 121:112.6 in (2.86 m) 10: 1157: 929:3.7-inch mountain howitzer 384: 331:Loading ammunition into a 157:75 mm (2.953 in) 1082: 1026: 965: 937: 916: 853: 817: 791: 740: 521:17 lb (7.7 kg) 171: 161: 151: 141: 136: 125: 117: 113:692 lb (314 kg) 109: 104: 94: 89: 79: 71: 66: 59:Place of origin 58: 48: 28: 21: 818:Field guns and howitzers 594:, 10% TNT, 10% aluminium 266:upport) versions of the 835:25-pounder Gun-Howitzer 198:fitted to the American 1131:World War II tank guns 993:QF 2-pounder naval gun 873:BL 5.5-inch medium gun 783:QF 95 mm howitzer 336: 184:Ordnance QF 75 mm 966:Anti-aircraft weapons 924:75mm Pack howitzer M1 656:Bovington Tank Museum 654:"Fire and Movement", 330: 192:Ordnance QF 6-pounder 988:QF 1½-pounder Mk III 903:BL 9.2-inch howitzer 893:BL 7.2-inch howitzer 883:BL 6-inch gun Mk XIX 845:QF 4.5-inch howitzer 727:British Commonwealth 335:, Normandy July 1944 248:armour-piercing shot 163:Muzzle velocity 1044:QF 4.7-inch Mk I–IV 1034:QF 6-pounder 10 cwt 435: 202:. The QF came from 41:Overloon War Museum 1018:QF 5.25-inch Mk II 957:ML 4.2-inch mortar 947:SBML 2-inch mortar 908:240 mm howitzer M1 898:BL 8-inch howitzer 878:BL 6-inch howitzer 856:guns and howitzers 768:QF 3-inch howitzer 647:. Arco publishing. 617:Anthony G Williams 433: 337: 90:Production history 23:Ordnance QF 75 mm 1113: 1112: 1083:Railway artillery 1069:BL 14-inch Mk VII 1059:BL 8-inch Mk VIII 1054:BL 7.5-inch Mk VI 1013:QF 4.5-inch Mk II 868:BL 60-pounder gun 854:Medium and heavy 531: 530: 397:(and possibly in 395:Normandy invasion 317:QF 95 mm howitzer 180: 179: 176: 1148: 1064:BL 9.2-inch Mk X 952:ML 3-inch mortar 840:25-pounder Short 720: 713: 706: 697: 696: 686:WWIIVehicles.com 648: 630: 624: 618: 612: 595: 592:ammonium nitrate 588: 582: 579: 518:76.2×583mm L/55 448:Muzzle velocity 436: 432: 283:Italian Campaign 279:Tunisia Campaign 188:Second World War 175: 84:Second World War 33: 24: 19: 18: 1156: 1155: 1151: 1150: 1149: 1147: 1146: 1145: 1141:75 mm artillery 1116: 1115: 1114: 1109: 1078: 1074:BL 15-inch Mk I 1022: 961: 933: 912: 888:155 mm Long Tom 855: 849: 825:75 mm Gun M1917 813: 787: 736: 724: 677: 634: 633: 629:1983 HMSO p. xi 625: 621: 613: 609: 599: 598: 589: 585: 580: 576: 566: 541: 536: 452: 387: 325: 236: 137: 67:Service history 44: 22: 17: 12: 11: 5: 1154: 1144: 1143: 1138: 1133: 1128: 1111: 1110: 1108: 1107: 1102: 1097: 1092: 1086: 1084: 1080: 1079: 1077: 1076: 1071: 1066: 1061: 1056: 1051: 1046: 1041: 1036: 1030: 1028: 1024: 1023: 1021: 1020: 1015: 1010: 1005: 1000: 995: 990: 985: 980: 978:20 mm Oerlikon 975: 969: 967: 963: 962: 960: 959: 954: 949: 943: 941: 935: 934: 932: 931: 926: 920: 918: 914: 913: 911: 910: 905: 900: 895: 890: 885: 880: 875: 870: 865: 859: 857: 851: 850: 848: 847: 842: 837: 832: 827: 821: 819: 815: 814: 812: 811: 806: 801: 795: 793: 792:Anti-tank guns 789: 788: 786: 785: 780: 775: 770: 765: 760: 755: 750: 744: 742: 738: 737: 723: 722: 715: 708: 700: 694: 693: 688: 683: 676: 675:External links 673: 672: 671: 658: 652: 649: 639: 638: 632: 631: 619: 606: 605: 604: 603: 597: 596: 583: 573: 572: 571: 570: 565: 562: 561: 560: 554: 548: 540: 537: 535: 532: 529: 528: 525: 522: 519: 516: 510: 509: 506: 503: 500: 499:75×350mm L/40 497: 493: 492: 489: 486: 483: 480: 474: 473: 470: 467: 464: 463:40×304mm L/50 461: 455: 454: 449: 446: 443: 440: 386: 383: 382: 381: 377: 376: 372: 371: 367: 366: 362: 361: 345: 344: 333:Churchill tank 324: 321: 291:Churchill NA75 235: 232: 204:"quick-firing" 178: 177: 173: 169: 168: 165: 159: 158: 155: 149: 148: 145: 139: 138: 134: 133: 130: 123: 122: 119: 115: 114: 111: 107: 106: 105:Specifications 102: 101: 99:Royal Ordnance 96: 92: 91: 87: 86: 81: 77: 76: 75:British Empire 73: 69: 68: 64: 63: 62:United Kingdom 60: 56: 55: 50: 46: 45: 34: 26: 25: 15: 9: 6: 4: 3: 2: 1153: 1142: 1139: 1137: 1134: 1132: 1129: 1127: 1124: 1123: 1121: 1106: 1103: 1101: 1098: 1096: 1093: 1091: 1088: 1087: 1085: 1081: 1075: 1072: 1070: 1067: 1065: 1062: 1060: 1057: 1055: 1052: 1050: 1047: 1045: 1042: 1040: 1039:QF 12-pounder 1037: 1035: 1032: 1031: 1029: 1027:Coast defence 1025: 1019: 1016: 1014: 1011: 1009: 1006: 1004: 1001: 999: 996: 994: 991: 989: 986: 984: 983:20 mm Polsten 981: 979: 976: 974: 971: 970: 968: 964: 958: 955: 953: 950: 948: 945: 944: 942: 940: 936: 930: 927: 925: 922: 921: 919: 917:Mountain guns 915: 909: 906: 904: 901: 899: 896: 894: 891: 889: 886: 884: 881: 879: 876: 874: 871: 869: 866: 864: 861: 860: 858: 852: 846: 843: 841: 838: 836: 833: 831: 830:QF 18-pounder 828: 826: 823: 822: 820: 816: 810: 809:QF 17-pounder 807: 805: 802: 800: 797: 796: 794: 790: 784: 781: 779: 776: 774: 773:QF 17-pounder 771: 769: 766: 764: 761: 759: 756: 754: 751: 749: 746: 745: 743: 739: 735: 731: 728: 721: 716: 714: 709: 707: 702: 701: 698: 692: 691:Miniatures.de 689: 687: 684: 682: 681:Britwar.co.uk 679: 678: 670: 669:0-11-290404-1 666: 662: 659: 657: 653: 650: 646: 641: 640: 636: 635: 628: 623: 616: 611: 607: 601: 600: 593: 587: 578: 574: 568: 567: 558: 555: 552: 549: 546: 545:7.5 cm KwK 40 543: 542: 526: 523: 520: 517: 515: 512: 511: 507: 504: 501: 498: 495: 494: 490: 487: 484: 482:57×441mm L50 481: 479: 476: 475: 471: 468: 465: 462: 460: 457: 456: 451:Muzzle energy 450: 447: 445:Shell weight 444: 441: 438: 437: 431: 428: 424: 420: 414: 412: 408: 404: 400: 396: 392: 379: 378: 374: 373: 369: 368: 364: 363: 359: 355: 351: 347: 346: 342: 341: 340: 334: 329: 320: 318: 313: 310: 305: 303: 302:muzzle energy 299: 294: 292: 288: 284: 280: 275: 273: 269: 265: 261: 257: 253: 249: 245: 241: 231: 229: 225: 221: 217: 213: 209: 205: 201: 197: 193: 189: 185: 174: 170: 166: 164: 160: 156: 154: 150: 146: 144: 140: 135: 131: 128: 124: 120: 116: 112: 108: 103: 100: 97: 93: 88: 85: 82: 78: 74: 70: 65: 61: 57: 54: 51: 47: 43:, Netherlands 42: 38: 37:Cromwell tank 32: 27: 20: 998:Bofors 40 mm 804:QF 6-pounder 799:QF 2-pounder 762: 758:QF 6-pounder 753:QF 3-pounder 748:QF 2-pounder 734:World War II 660: 644: 637:Bibliography 626: 622: 610: 586: 577: 557:M3 75 mm /40 551:76.2 mm F-34 415: 388: 338: 314: 308: 306: 295: 290: 276: 263: 259: 240:QF 2-pounder 237: 227: 223: 219: 215: 211: 200:Sherman tank 196:75 mm M3 gun 183: 181: 129: length 95:Manufacturer 72:Used by 1008:QF 3.7-inch 496:75 mm 234:Development 1120:Categories 663:1983 HMSO 564:References 423:17-pounder 323:Ammunition 272:War Office 268:Matilda II 172:References 1003:QF 3-inch 973:Z Battery 741:Tank guns 730:artillery 602:Citations 403:6-pounder 358:trimonite 256:Churchill 244:6-pounder 208:cartridge 778:77 mm HV 763:QF 75 mm 534:See also 442:Caliber 413:rounds. 391:Cromwell 309:en masse 287:75 mm M3 258:and CS ( 53:Tank gun 16:Tank gun 939:Mortars 419:M7 3 in 385:Service 230:iring. 153:Calibre 147:75×350R 35:Gun on 667:  527:3,100 514:17 pdr 508:1,300 491:1,100 354:Amatol 127:Barrel 118:Length 569:Notes 478:6 pdr 459:2 pdr 399:Burma 262:lose 226:uick- 218:oyal 214:from 143:Shell 665:ISBN 590:80% 472:295 439:Gun 421:and 411:APDS 409:and 407:APCR 212:ROQF 182:The 110:Mass 80:Wars 49:Type 732:of 453:kJ 427:RHA 350:TNT 39:at 1122:: 274:. 252:HE 719:e 712:t 705:v 264:S 260:C 228:F 224:Q 220:O 216:R

Index


Cromwell tank
Overloon War Museum
Tank gun
Second World War
Royal Ordnance
Barrel
Shell
Calibre
Muzzle velocity
Second World War
Ordnance QF 6-pounder
75 mm M3 gun
Sherman tank
"quick-firing"
cartridge
QF 2-pounder
6-pounder
armour-piercing shot
HE
Churchill
Matilda II
War Office
Tunisia Campaign
Italian Campaign
75 mm M3
3 inch 20 cwt anti-aircraft gun
muzzle energy
QF 95 mm howitzer

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