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Sweden
37mm Bofors L/45

Showing the details of the shells used(where known)
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Weapon Details
Flag
37mm Bofors L/45 Blank
Calibre37mm
LengthL/45
 
37 mm sk ptr m/34 slpprj m/38
(AP Armor Piercing)
37mm 0.74Kg 785M/Sec
Quoted Penetration 40mm @ 400mtr/30° ( ≈ 46mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.27 0.57 1.3 2.27 3.6 5.55 8.73
Penetration(mm@30°) 46 41 36 29 22 17 12 7
Penetration(mm@0°) 54 48 42 34 26 20 14 9
Hit Probability(%) 98 98 98 93 57 22 3 1



37 mm sk ptr m/34 sgr m/43
(HE High Explosive)
37mm 0.68Kg 805M/Sec 0.210Kg explosive
Range(Mtr)10002000300040005000600070008000
Flight Time(Secs) 1.7 5.42
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.26 0.56 1.27 2.21 3.51 5.42 8.5
Hit Probability(%) 98 98 98 93 57 22 6 2
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill4 mtr Burst radius Infantry in open 66% kill8 mtr
Burst radius Infantry in open 33% kill20 mtr  Armour Penetration inc roof at 1 mtr0 mm
An explosion within 4 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 8 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 20 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 not cause any significant armour damage.


 
37 mm sk ptr m/34 slpgr m/39
(HEAT High Explosive Anti-Tank)
37mm 0.74Kg 775M/Sec
Quoted Penetration 39mm @ 100mtr/30° ( ≈ 45mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.27 0.58 1.32 2.29 3.64
Penetration(mm@30°) 39
Penetration(mm@0°) 39
Hit Probability(%) 98 98 98 90 57 22

Vehicles in our database using this gun
Vehicle NameCommon Name
 Light Tank 7 TP (single turret)single turret 
 Light Tank 7 TP improved 
 Strv m/31 (L-10)L-10 
 Strv m/38 
 Strv m/39 
 Strv m/40 K 
 Strv m/40 L (Strv 33)Strv 33 
 Strv m/41 (Strv 35) S/1Strv 35 
 Strv m/41 (Strv 35) S/2Strv 35 
 

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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