Discussion
Pressure develop in 0.303 rifle is :
Answer: A
The pressure developed in the .303 rifle is about 3400 kg per \(\text{cm}^{2}\).
The .303 is a high-velocity service rifle cartridge. Its chamber pressure is of the order of 20 tons per square inch, and forensic ballistics texts give it in metric units as about 3,400 kg per square centimetre. Pressures of this size are needed to drive its bullet at about 2,400 feet per second.
500 kg per \(\text{cm}^{2}\) is of the order of a shotgun's pressure, and 1000-1500 kg per \(\text{cm}^{2}\) belongs to low-velocity handgun cartridges; all are far too low for a rifle of this power.
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