Soviet 2S3 self-propelled howitzer

The 2S3 self-propelled howitzer is a 152mm self-propelled howitzer developed by the former Soviet Union in the late 1960s. This type of howitzer is composed of the PI-20 howitzer and the chassis of the Sam-4 missile launcher, with a barrel length of 29 times the caliber. It is equipped with a muzzle brake and a smoking device, and is loaded with ammunition by a mechanical loading machine. The body is enclosed, with strong three defense capabilities, and can be transported by air. The 2S3 howitzer has an initial velocity of 670 meters per second, a maximum range of 18.5 kilometers, and a maximum firing rate of 4 rounds per minute when firing grenades. It can fire various types of ammunition such as grenades, rocket extended range shells, armor piercing shells, and nuclear and chemical bombs.