We the undersigned compose this act to record that we have performed ballistics trials of the 76 mm gun mod. 1942 (ZiS-3) on an SPG built on a modified T-70 tank, indexed SU-38.
The firing was performed at the factory shooting range with proof HE shells.
- Firing from the right limit: The gun is aimed as far to the right as possible. 3 shots are made. The loader was to the right of the gun during two shots, and to the left of the gun for the third shot.
- Firing from the left limit. The gun is aimed as far to the left as possible. 3 shots are made.
- Firing from the center position. The hatches and doors are closed. The gun elevation is approximately 0 degrees. The brakes are off. The firing is done to measure the rate of fire, using shells from the left rear rack. Rate of fire: 5 shells during 17 seconds from the "fire!" command. During the five shots, the aim was insignificantly shifted.