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Austria
4.7cm Bohler L/32

Showing the details of the shells used(where known)
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Weapon Details
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4.7cm Bohler L/32
(Anti Tank Gun)
Blank
photo of 4.7cm Bohler L/32 from Wikipedia
History
The Bohler 4.7cm was designed in the early 1930's to fire both Armour Piercing and High Explosive rounds. It was sold to a number of European nations including Italy who produced it under licence as the Cannone da 47/32 M35, other countries included the Netherlands, Finland, Romania, Latvia and Switzerland.
Manufactured1930 - 1939
Calibre47mm
LengthL/32
Rate of Fire12 rpm
 
47 x 195/227 mm R L/32
(AP Armor Piercing)
47mm 1.6Kg 630M/Sec
Quoted Penetration 58mm @ 100mtr/30° ( ≈ 66mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.16 0.33 0.69 1.53 2.56 3.86 5.53 7.79
Penetration(mm@30°) 54 50 44 37 30 24 19 14
Penetration(mm@0°) 63 58 51 43 35 28 22 17
Hit Probability(%) 98 98 98 85 44 22 3 2



Bohler HE
(HE High Explosive)
47mm 2.37Kg 250M/Sec ≈0.356Kg explosive
Maximum Range not shown as gun elevation is limited
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.41 0.84 1.75 3.86 6.45 9.72 13.94 19.68
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.41 0.84 1.75 3.86 6.45 9.72 13.94 19.68
Hit Probability(%) 98 98 77 22 3 1 0 0
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill3 mtr Burst radius Infantry in open 66% kill6 mtr
Burst radius Infantry in open 33% kill15 mtr  Armour Penetration inc roof at 1 mtr1 mm
An explosion within 3 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 6 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 15 mtr of infantry in the open will cause 33% casualties.
The blast effect of this shell exploding within 1 mtr of an armoured vehicle will penetrate 1 mm of the tank armour including the roof.


 
Bohler HEAT
(HEAT High Explosive Anti-Tank)
47mm 2.37Kg 250M/Sec
Quoted Penetration 55mm @ 0mtr/0°
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.41 0.84 1.75 3.86 6.45 9.72
Penetration(mm@30°) 55 55 55 55 55 55
Penetration(mm@0°) 55 55 55 55 55 55
Hit Probability(%) 98 98 77 22 3 1

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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