S.I.G.33 (150 mm)

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Description

The 150 mm s.I.G.33 is a German infantry gun. It stands for "schweres Infanteriegeschütz 33" (literally: heavy infantry gun 33).

Vehicles equipped with this weapon

General info

The schweres 15-cm-Infanteriegeschütz 33 is capable of firing HE and HEAT grenades. Being an infantry gun developed in the 1920s, it is inaccurate at long range due to its short barrel.

Available ammunition

Penetration statistics
Ammunition Type of
warhead 		Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
I.Gr.38 HE 61 61 61 61 61 61
I.Gr.39 HI/A HEAT 185 185 185 185 185 185
Shell details
Ammunition Type of
warhead 		Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay
(m) 		Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (kg) 		Ricochet
0% 50% 100%
I.Gr.38 HE 240 38 0 0.1 8.6 79° 80° 81°
I.Gr.39 HI/A HEAT 280 24.58 0.05 0.1 5.32 62° 69° 73°

Comparison with analogues

  • The 150 mm Stu.H 43 L/12 used by the Brummbär is of similar length, fires the same shells, but needs a longer time to reload.
  • The 150 mm Type 38 on the Ho-Ro fires a heavier shell with more explosive filler.
  • The 152 mm M-10T equipped on the KV-2 (Family) fires a heavier HE shell with less explosive filler and less penetration, but is able to fire SAPCBC shells.

Usage in battles

The sIG 33 has a huge damage output when using HE (and is therefore regularly encountered in high-rank matches), but its inaccuracy becomes increasingly difficult to compensate at firing distances beyond circa 500 m. The steep trajectory of its projectiles makes it suitable for indirect fire.

Pros and cons

Pros:

  • Fires a giant shell with lots of explosive filler
  • Damage and armour penetration stem entirely from the explosive force, meaning for most vehicles at its battle rating, just aim centre mass
  • Enough explosive filler that it can destroy unarmoured/light armoured targets with splash damage and overpressure alone

Cons:

  • Extremely slow reload rate, if you miss your initial shot in a confrontation, you are in danger of getting destroyed before being able to reload
  • Slow muzzle velocity and a heavy projectile means a lot of range adjustment and leading will have to be made
  • In close quarters, you may end up knocking yourself out due to overpressure damage
  • On heavily armoured opponents, the few ways possible to destroy them is to fire the shell either down underneath the tank or at the roof.

History

Examine the history of the creation and combat usage of the weapon in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the weapon and adding a block "/History" (example: https://wiki.warthunder.com/(Weapon-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref></ref>, as well as adding them at the end of the article with <references />.

Media

Videos
Top 7 best rounds discusses the J.Gr.38 at 3:09 - War Thunder Official Channel

See also

Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:

  • reference to the article about the variant of the cannon/machine gun;
  • references to approximate analogues by other nations and research trees.

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • other literature.


Germany tank cannons
20 mm  KwK30 · KwK38 · Rh202
28/20 mm  s.Pz.B.41
30 mm  MK 30-2/ABM
37 mm  KwK34(t) · KwK36 · KwK38(t) · PaK L/45
47 mm  Pak.(t)(Sf.)
50 mm  KwK39 · KwK L/42 · PaK38
57 mm  Bofors L/70 Mk.1
75 mm  K51 L/24 · KwK37 · KwK40 L43 · KwK40 L48 · KwK42 · KwK44 · KwK44 L/36.5 · PaK39 L48 · PaK40/3 L46 · PaK42 · StuK37 · StuK40 L43 · StuK40 L48
76 mm  PaK36 (r)
88 mm  Flak.37 · Flak 41 · KwK36 · KwK43 · PaK43
90 mm  BK90
105 mm  CN105-57 · FMK.4 Modelo 1L · K.18 · KwK L/68 · L7A3 · PzK M57 · StuH42
120 mm  Rh120 L/44 · Rh120 L/55 · Rh120 L/55 A1
128 mm  K.40 · KwK44 · PaK44
150 mm  s.I.G.33 · Stu.H 43 L/12
380 mm  RW61
  Foreign:
30 mm  Bushmaster 2 Mk.44 (USA) · HSS 831L (Britain)
57 mm  6pdr OQF Mk.V (Britain)
73 mm  2A28 (USSR)
75 mm  M3 (USA)
76 mm  F-32 (USSR) · F-34 (USSR) · M32 (USA)
90 mm  M36 (USA) · M41 (USA)
105 mm  GT-3 (South Africa)
125 mm  2A46 (USSR)
152 mm  M-10T (USSR) · XM150E5 (USA)
155 mm  M126 (USA)

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