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Union Soviet Socialist Republics
45mm M1932 L/46 19/20K

Showing the details of the shells used(where known)
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Weapon Details
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45mm M1932 L/46 19/20K
(Anti Tank Gun)
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History
This was a 45mm Russian designed gun on a Rheinmetal Pak 37mm carriage, and was also used in various armoured vehicles. the Russian nomenclature for this gun was 19K for Anti Tank and 20K for Tank mounted guns.
Manufactured1932 - 1937
Calibre45mm
LengthL/46
Rate of Fire15 rpm
 
UBR-243P
(AP Armor Piercing)
45mm 0.87Kg 760M/Sec
Quoted Penetration 36mm@400m
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.28 0.58 1.28 2.16 3.27 4.75 6.77
Penetration(mm@30°) 38 35 31 25 21 16 12 9
Penetration(mm@0°) 45 41 36 30 25 19 15 11
Hit Probability(%) 98 98 98 93 60 25 8 3



UO-243
(HE High Explosive)
45mm 2Kg 343M/Sec ≈0.3Kg explosive
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.3 0.61 1.28 2.84 4.77 7.24 10.5 15
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.3 0.61 1.28 2.84 4.77 7.24 10.5 15
Hit Probability(%) 98 98 93 34 8 2 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 mtr0 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 not cause any significant armour damage.

Vehicles in our database using this gun
Vehicle NameCommon Name
 BT-3 / BT-4 
 BT-7-1 
 BT-7-2 
 BA-10 
 SU-45 
 T-26C 
 T-26E 
 T-26S 
 T-50 
 T-70 
 T-80 
 

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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