By weight, expressed in grains and by diameter expressed in thousandths of an inch (called caliber, ie .223) or in millimeters (5.56)
a chronograph
It depends on what you mean by measure, but if you mean in regard to the "50 caliber" part, caliber is the diameter of the piece of lead.
Depends on the size, mass, velocity and placement of the projectile.
If we consider the bullets of same size,then rubber bullet having less density will have higher velocity and higher kinetic energy than that of lead bullet.Thus rubber bullet can impart more energy.Hence this would be more effective.
Wave velocity
There are a couple of different measurements. The weight of a bullet is normally expressed in grains. The diamater of the bullet is expressed in 10ths or 100th of an inch or in millimeters.
The bullet is 22/100ths of an inch in diameter.
7.62x39
a chronograph
The .22 caliber bullet is ABOUT .22 inches wide. A .32 bullet is about .32 inches wide. The bullet will also be heavier due to size.
Size of the bullet
It is .25 caliber.
There is no one answer- it depends on the rifle. They are generally less powerful than a full size battle rifle cartridge. The M16 rifle uses a 5.56mm bullet, the AK47 a 7.62mm bullet, etc.
Yes, a bullet must be the same diameter as the barrel (unless it is a shotgun).
Hodgdon load data shows a .452 bullet.
The term "762" refers to a 7.62mm bullet. This is a common size for European guns and the AK-47. The 54 refers to the length of the round or the powder, I forget. Not sure exactly what bullet this describes but that is the diameter size (caliber) of the bullet.
The size of a given bullet is determined by its diameter, and its weight. The size must match the size of the barrel it will be fired from, and heavier bullets will be longer. With cast lead bullets, after casting they are pushed through a machine called a die. This squeezes the bullet down to a precise diameter- this is called SIZING.