It depends on Long, LR, Extra Long, etc. I would say average grain is about 40.
A 22 caliber bullet is 22/100 inches in diameter. A 7.62 mm bullet is 30 caliber or 30/100 inches in diameter there is no such thing as a 7.62 caliber bullet
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.
NO!!! DO NOT ATTEMPT THIS!!!
The .22 bullet is smaller than the 9mm in size, (about 6mm) and is lighter in weight.
It depends on a couple of factors, but it can range from none (on a subsonic round) to a couple of grains.
A rifle that shoots a .22 caliber bullet.
not much
Depends on the bullet. A few have NO lead. Bullet weights are usually given in GRAINS rather than grams- a 110 grain bullet, like the M1 Carbine, weighs 7.1 grams. Bullet for a .22 short is about 29 grains, for a LARGE rifle, maybe 500 grains.
It is possible.
It will kill someone
as far as it wants
It is a bullet for a .22 caliber rifle which is very quiet as the bullet travels slower than the speed of sound