378:
gun mounts, was similar but with 1.8 in (46 mm) cut off the breech end of the gun. Only one gun, No. 136, was modified in this way. Mod 3 was similar in construction to the Mod 1 but with its mounting threads located differently and it also had a threaded bronze sleeve. Mod 4 only differed from Mod 1 construction in adding a shoulder for a mounting yoke and with a different location for the mounting threads. The chamber volume was reduced slightly to 1,355 cu in (22,200 cm). Mod 5 only differed from Mod 4 in adding a muzzle bell. Mod 6 was skipped and Mod 7 was an experimental Mod 4 bored out to use bag ammunition, a 1,367 cu in chamber, 1.83 in (46 mm) think faceplate added to the breech end, and a trunnion hoop added. With Mod 8, gun No. 161, a Mod 4 gun, a 30 in (760 mm) muzzle liner and muzzle bell were used and the rifling was a uniform 1/25 instead of 0 to 1/35. Mod 9 was a Mod 4 using a tube constructed of
31:
377:
Mod 1, No. 155, was of similar construction, but was 0.31 in (7.9 mm) longer, only 4 hoops, and an experimental breech mechanism. The chamber volume was also increased slightly from 1,320 cu in (21,600 cm) to 1,367 cu in (22,400 cm). Mod 2, for Mark 6, 7, and 9
382:
instead of the normal gun-metal and again the rifling was a uniform 1/25. Mod 10 used a Mod 4 had a two-step cylindrical nickel-steel liner with the rifling changed to 0 to 1/25. Mod 11 used a Mod 4 but with only a one-step cylindrical nickel-steel liner and with a uniform 1/25 rifling. Mod 12 also
383:
used a Mod 4 with a nickel-steel liner and a 0 to 1/25 increasing twist rifling. The last Mod, Mod 13 consisted of a Mod 5 with a nickel-steel liner and the using an increasing twist rifling of 0 to 1/25.
358:
The first Mark 4, gun No. 133, was completed July 1896. Production numbers were Nos. 133–196, 260–263, and 423–426. It was the first 6-inch Navy gun designed from the beginning to use case,
355:, namely the Mods 0, 1, 2, 3, and 8, and were removed from service, however, since they were stronger than the earlier Mark 1, 2, and 3s, 45 of them were still in active service June 1917.
370:. It was originally threaded to be mounted in the Mark 5 gun mount. Mod 0 was very similar to the Mark 3 Mod 2 but with the breech ring lengthened 0.1 in (2.5 mm), the
1011:
722:
1034:
662:
347:, in later years they were not considered strong enough to withstand the higher chamber pressures generated by the newer
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8:
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672:
348:
673:"United States of America 6"/30, 6"/35 and 6"/40 (15.2 cm) Marks 1, 2, 3, 4 and 7"
652:
648:
266:
296:(spoken "six-inch-forty-caliber") were used for the secondary batteries of the
1028:
740:
379:
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344:
340:
249:
695:
335:
The 6-inch (152 mm)/40 caliber Mark 4 guns were developed before the
732:
352:
314:
99:
239:
196:
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894:
51:
371:
367:
696:
Bluejackets Manual, 1917, 4th revision: US Navy 14-inch Mark 1 gun
576:
898:
794:
730:
229:
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351:
adopted around 1898. Many were obsolete before the start of
362:, ammunition. The gun was constructed of gun steel using a
627:
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601:
317:. They were also used as the main battery on the
284:18,000 yd (16,000 m) at 30.2° elevation
1026:
577:Weapons of comparable role, performance and era
281:9,000 yd (8,200 m) at 15.3° elevation
176:13,370 lb (6,060 kg) (without breech)
716:
521:Mark 7: 14 × pedestal mount (refit by 1905)
497:Mark 7: 14 × pedestal mount (refit by 1905)
473:Mark 7: 14 × pedestal mount (refit by 1905)
723:
709:
671:
647:
631:
614:
256:As commissioned: 1.5 rounds per minute
155:72 (Nos. 133–196, 260–263, and 423–426)
1027:
374:hoop removed and the barrel threaded.
704:
202:240 in (6,100 mm) bore (40
189:Mod 1: 254.61 in (6,467 mm)
572:– includes 6"/40 caliber Mark 3 guns
186:Mod 0: 256.1 in (6,500 mm)
13:
14:
1051:
689:
259:After 1906: 7.6 rounds per minute
42:, 6-inch/40 caliber gun and crew.
855:5"/51 caliber Mark 7–8 and 14–15
386:
276:Effective firing range
163:Mark 4 Mod 0 – Mod 13 (no Mod 6)
29:
1035:Naval guns of the United States
221:105 lb (48 kg) naval
731:American naval weapons of the
654:Naval Weapons of World War One
271:2,150 ft/s (660 m/s)
149:
1:
640:
7:
775:13"/35 caliber Mark 1 and 2
760:12"/40 caliber Mark 3 and 4
755:12"/35 caliber Mark 1 and 2
563:
557:Mark 6: 1 × pedestal mount
540:Mark 6: 1 × pedestal mount
518:Mark 6: 14 × pedestal mount
494:Mark 4: 14 × pedestal mount
470:Mark 4: 14 × pedestal mount
10:
1056:
880:8"/35 caliber Mark 3 and 4
870:6"/50 caliber Mark 6 and 8
860:6"/30 caliber Mark 2 and 3
850:5"/50 caliber Mark 5 and 6
814:6"/50 caliber Mark 6 and 8
804:6"/30 caliber Mark 2 and 3
451:Mark 5: 4 × central-pivot
434:Mark 5: 4 × central-pivot
417:Mark 5: 4 × central-pivot
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58:Place of origin
57:
47:
28:
21:
595:
294:6"/40 caliber gun Mark 4
991:.50 caliber machine gun
657:. Seaforth Publishing.
589:15 cm SK L/40 naval gun
583:QF 6 inch /40 naval gun
234:6 in (152 mm)
1000:Anti-submarine weapons
913:4"/40 caliber Mark 1–6
845:5"/40 caliber Mark 2–4
675:. Navweaps. 3 May 2015
554:Mark 3: 6"/40 caliber
537:Mark 4: 6"/40 caliber
513:Mark 4: 6"/40 caliber
489:Mark 4: 6"/40 caliber
465:Mark 4: 6"/40 caliber
448:Mark 4: 6"/40 caliber
431:Mark 4: 6"/40 caliber
414:Mark 4: 6"/40 caliber
250:Rate of fire
135:U.S. Naval Gun Factory
957:Anti-aircraft weapons
829:10"/40 caliber Mark 3
770:12"/50 caliber Mark 7
765:12"/45 caliber Mark 5
750:10"/30 caliber Mark 2
23:6"/40 caliber Mark 4
1012:8"/23 caliber Mark 7
885:8"/45 caliber Mark 6
875:7"/45 caliber Mark 2
865:6"/40 caliber Mark 4
824:8"/45 caliber Mark 6
819:8"/30 caliber Mark 2
809:6"/40 caliber Mark 4
366:, jacket, and seven
337:Spanish–American War
267:Muzzle velocity
95:Spanish–American War
838:Secondary armament
585:British equivalent
325:protected cruisers
298:United States Navy
117:Bureau of Ordnance
108:Production history
83:United States Navy
1020:
1019:
664:978-1-84832-100-7
591:German equivalent
570:6"/30 caliber gun
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1040:152 mm artillery
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649:Friedman, Norman
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349:smokeless powder
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733:First World War
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339:and still used
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71:In service
66:Service history
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785:14"/50 caliber
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780:14"/45 caliber
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690:External links
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634:, p. 180.
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168:Specifications
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986:
984:Light weapons
982:
976:
975:3"/50 caliber
973:
971:
970:3"/23 caliber
968:
966:
963:
962:
960:
958:
954:
948:
947:4"/50 caliber
945:
943:
942:3"/50 caliber
940:
938:
937:3"/23 caliber
935:
934:
932:
929:
925:
919:
918:4"/50 caliber
916:
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911:
909:
908:3"/50 caliber
906:
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799:
797:main armament
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743:main armament
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632:Friedman 2011
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615:Navweaps 2015
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425:Massachusetts
421:
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387:Naval service
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61:United States
60:
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50:
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41:
39:
38:Massachusetts
32:
27:
20:
1022:
965:QF 1-pounder
864:
808:
741:Capital ship
677:. Retrieved
653:
547:
530:
509: (BB-9)
506:
485: (BB-8)
482:
461: (BB-7)
458:
444: (BB-3)
441:
427: (BB-2)
424:
410: (BB-1)
407:
380:nickel-steel
376:
357:
345:brown powder
341:black powder
334:
319:
309:
302:
293:
291:
199: length
131:Manufacturer
79:Used by
40: (BB-2)
37:
550: (C-8)
533: (C-7)
353:World War I
315:battleships
152: built
144:1896 – 1905
100:World War I
1029:Categories
641:References
531:Cincinnati
400:Gun mount
360:semi-fixed
320:Cincinnati
928:Submarine
895:Destroyer
546:USS
529:USS
507:Wisconsin
505:USS
481:USS
457:USS
440:USS
423:USS
406:USS
52:Naval gun
36:USS
16:Naval gun
901:armament
651:(2011).
564:See also
459:Illinois
372:trunnion
310:Illinois
240:Traverse
204:calibers
160:Variants
141:Produced
123:Designed
113:Designer
899:gunboat
795:Cruiser
548:Raleigh
483:Alabama
408:Indiana
303:Indiana
230:Caliber
679:15 May
661:
442:Oregon
331:Design
322:-class
312:-class
305:-class
197:Barrel
181:Length
1007:Y-gun
596:Notes
394:Ship
368:hoops
217:Shell
930:guns
897:and
681:2016
659:ISBN
364:tube
307:and
292:The
173:Mass
126:1883
89:Wars
74:1885
48:Type
343:or
300:'s
150:No.
1031::
622:^
603:^
327:.
724:e
717:t
710:v
683:.
667:.
617:.
206:)
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