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Britain
5.5in Gun Mk III

Showing the details of the shells used(where known)
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Weapon Details
5.5in Gun Mk III
(Field Gun)
Blank
photo of 5.5in Gun Mk III from Flames of War
Manufactured1941 - 1945
Calibre140mm
LengthL/30
Rate of Fire2rpm
 
Shell HE S/L 100lb Mk ID
(HE High Explosive)
140mm 45.4Kg 510M/Sec ≈6.81Kg explosive
Maximum Range 14810 Mtr
Range(Mtr)10002000300040005000600070008000
Flight Time(Secs) 2.11 4.58 7.49 10.98 15.25 20.59 27.45 36.6
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.2 0.4 0.81 1.66 2.57 3.54 4.58 5.68
Hit Probability(%) 98 98 98 81 44 22 8 3
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill5 mtr Burst radius Infantry in open 66% kill10 mtr
Burst radius Infantry in open 33% kill25 mtr  Armour Penetration inc roof at 2 mtr20 mm
An explosion within 5 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 10 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 25 mtr of infantry in the open will cause 33% casualties.
The blast effect of this shell exploding within 2 mtr of an armoured vehicle will penetrate 20 mm of the tank armour including the roof.



Shell HE S/L 80lb Mk ID
(HE High Explosive)
140mm 37.1Kg 594M/Sec ≈5.565Kg explosive
Maximum Range 16550 Mtr
Range(Mtr)10002000300040005000600070008000
Flight Time(Secs) 1.81 3.93 6.43 9.43 13.09 17.68 23.57 31.43
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.17 0.34 0.69 1.43 2.21 3.04 3.93 4.88
Hit Probability(%) 98 98 98 88 57 25 22 8
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill5 mtr Burst radius Infantry in open 66% kill10 mtr
Burst radius Infantry in open 33% kill25 mtr  Armour Penetration inc roof at 2 mtr16 mm
An explosion within 5 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 10 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 25 mtr of infantry in the open will cause 33% casualties.
The blast effect of this shell exploding within 2 mtr of an armoured vehicle will penetrate 16 mm of the tank armour including the roof.

Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.

The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive and numerous books and websites that have provided the detailed information that has not been available anywhere else. The information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre, the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.

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