The AK-47 shoots a 7.62 x 39mm bullet. The 39mm indicated the length of the brass/steel case.
7.62×39mm
7.62x39
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.
The AK-47 uses the 7.62x39mm round. Note that the AK-74, a similar firearm uses the different 5.45x29mm round.
Size of the bullet
7.62 caliber
The correct size of the bullet that fits the rifle.
they are exactly the same
magazines available in 20, 30 & 40 rounds
The bullet is 22/100ths of an inch in diameter.
I think you mean .32 caliber, not mm. It means that the gun fires a bullet that is about 32/100ths of an inch in diameter. A 9mm fires a bullet 9mm in diameter- or about .35 inches in diameter. A 32 mm bullet would be about the size of big (D cell) flashlight battery!
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.