"Results of firing the 12.7 mm DShK machine gun with the B-32 bullet against the German Pz.Kpfw.IV tank
Range | Hit location | Armour slope from vertical | Total angle (slope + shooting angle) | Armour thickness | Hits | Results |
100 m | Right side of the turret | 25 deg | 70 deg | 20 mm | 5 | 15 mm deep impacts (1 on photo #63) |
50 | 25 | 90 | 20 | 2 | 18 mm deep impacts (2 on photo #63) | |
100 | Right side of the hull, engine compartment | 0 | 70 | 20 | 3 | Complete penetration |
100 | Turret rear | 12 | 90 | 20 | 5 | One complete penetration, 4 18 mm deep dents |
100 | Hull rear | 0 | 70 | 20 | 2 | Complete penetration |
150 | 0 | 70 | 20 | 2 | 17 mm deep dents | |
150 | 0 | 90 | 20 | 2 | 18 mm deep dents |
The 20 mm thick side and rear hull armour can be penetrated by the 12.7 mm B-32 bullet at a close range of 100 meters."
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| Photo #63. Damage to the 20 mm thick turret armour after firing. 1: from 100 m. 2: from 50 m. |
CAMD RF F.38 Op.11355 D.832 L.63