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Copyright © 1999 David Michael Honner. Based on Soviet specifications unless otherwise noted.
Model 35B. This was the widely used Austrian 4,7cm Böhler anti-tank gun, taken over from Lithuania in 1939 after Soviet annexation of the Baltic States.
1. 45mm ATG obr.1932 and 1937, and 45mm tank guns (all models). Source: Zaloga, Steven J. and Ness, Leland S.: Red Army Handbook 1939–1945; Russian Military Zone and Red Steel. The differences between the 1932 and 1937 ATGs are in the design of the breech block (which resulted in a higher rate of fire) and travelling gear. Red Steel gives the penetration of an APDS projectile (which I presume is a misprint for APCR) in the entry for the BT–5 light tank, but the data seems to be the same as for the higher velocity 45mm ATG obr.1942. It seems likely that the penetration would be less for these guns as the muzzle velocity is lower. APCR rounds for 45mm guns became available in April 1942. The penetration data for all models is the same as the barrel and ammunition are unchanged. [up]
2. 20K. Source: Russian Military Zone. This was developed from the 19K tank gun and was not related to any of the Soviet 45mm ATGs. [up]
3. 45mm ATG obr.1942. Source: Russian Military Zone. The BR–240SP AP projectile was a solid shot round with no explosive filler. [up]
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