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350:) pressure and the remainder of the charge of two equal increments pressed under approximately 9,000 psi (62 MPa) pressure. The Composition "A" bursting charge is loaded in the same manner as the tetryl charge, except that the relay pellet with the Composition "A" weighs 36 gr (2.3 g) as against 23 gr (1.5 g) for the pellet used with the tetryl load.
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As used in the M4, the complete round weighed 1.99 lb (900 g), and as fired the shell weighed 1.34 lb (610 g). The 0.16 lb (73 g) charge of M2 powder was
Hercules NG formula of single perforated grains with a 0.03 in (0.76 mm) web and gave the prescribed muzzle
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The M54 used a shell-destroying tracer in addition to the point-detonating fuze. The tracer had a burning time of three seconds at the end of which it set off an igniting relay charge of 1.68 gr (0.109 g) of Grade A-5 Army Black Powder which ignited a relay pellet that detonated the charge,
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This shell used the M56 point detonating fuze. The complete round weighs 1.99 lb (900 g); as fired, the projectile weighs 1.34 lb (610 g). The 0.16 lb (73 g) charge of M2 powder is a
Hercules NG formula of single perforated grains with 0.03 in (0.76 mm) web and
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The 37 mm (1.46 in) gun, M4, used the same high-explosive (M54) and practice (M55A1) projectiles as the 37 mm (1.46 in) antiaircraft gun, M1A2, but different cartridge cases were necessary due to the larger chamber of the M4 gun. The M4 was later replaced by the more powerful 37mm
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This shell was the high-explosive shell modified slightly for practice purposes. It contained a red tracer and a dummy fuze (M50, M50B1, M50B2 or M50B3). The M50 dummy fuze was made from a plastic composition and the M50B1, M50B2 and M50B3 fuzes were made from low carbon steel machined to give the
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The rapid strides in aircraft protection made it necessary to develop an aircraft weapon that would fire projectiles with greater explosive and armor-piercing qualities than smaller caliber weapons. As a result, the 37 mm (1.46 in) T9 automatic gun was developed. It was standardized for
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The M80 Armor-Piercing Tracer shot was a monoblock projectile with a tracer element of three seconds burning time. It did not need a fuze or bursting charge. The weight of the complete round was 2.31 lb (1.05 kg), the weight of the AP shot was 1.66 lb (750 g). The propelling
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weighed 0.10 lb (45 g), and the alternate
Composition "A" charge weighs 0.105 lb (48 g). The tetryl loading consisted of a 200 gr (13 g) tetryl pellet pressed into the shell cavity under
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The overall length of the 37mm M-74 AP-T (Armor-Piercing shot with Tracer) and M-51 APCBC-T (Armor-Piercing
Composite Ballistic-Capped shot with Tracer) armor-piercing projectiles used in the
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charge was 0.15 lb (68 g) of M2 powder of a
Hercules NG formula with a single-perforated grain and 0.03 in (0.76 mm) web.
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of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be
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375:(37×223mmR), was too great to permit their use in the M4 gun. The 37 mm M80 AP-T shot was developed and standardized.
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same contour and weight as the point-detonating fuze, M56, used with the M54 projectile.
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gives the projectile the prescribed muzzle velocity of 2,000 ft/s (610 m/s).
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was a series of rimmed-case, fixed-ammunition cannon shells for use in the 37mm
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Please help to demonstrate the notability of the topic by citing
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was issued in the form of fixed rounds, consisting of:
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High-explosive Tracer shell, 37 mm, M54 standard
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64:Learn how and when to remove these messages
354:Practice shell, 37 mm, M55A1 standard
373:M3A1, M5A1, and M6 tank and antitank guns
261:Learn how and when to remove this message
243:Learn how and when to remove this message
129:Learn how and when to remove this message
285:aircraft use as the M4 cannon in 1942.
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45:This article has multiple issues.
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156:may not meet Knowledge (XXG)'s
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306:Point-Detonating fuze, M56
165:reliable secondary sources
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27:Type of Cannon Ammunition
420:Large-caliber cartridges
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18:37x145mmR M4
192:"37×145mmR"
169:independent
119:August 2014
111:introducing
383:References
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