There is no way to give you a brief answer. ONE of my reference books on cartridges is about 2 inches thick, and THAT does not have all of them. Rifle cartridges have been as small as .17 caliber, and as large as .200 caliber. There are thousands of different rifle cartridges.
None. Weapons and ammunition are illegal in Mexico.
The model 1890 Winchester was only chambered in .22 short,22long,22 long rifle,or 22WRF calibers which were all rimfire calibers.
They were made in several calibers- will be marked on the barrel.
Winchester made many rifle models chambered in several .22 calibers.
300 RUM is one
Well over 1000.
300 Win Mag would be one.
Savage manufactured a Model 110 bolt action rifle in several calibers. Very good rifles.
The M1 is currently made in a variety of calibers.
There are over 1500 different cartirdges that are/have been made. Calibers run the range from .17 Hornady to the .700 Nitro express.
Yes it is possible. An air soft gun will not kill you but a pellet rifle is capable if killing a person. Pellet rifles come in several calibers. .177, .20, .22, .25, 9mm, 45 cal and 50 cal. The last 3 calibers are fired from a PCP pellet rifle. This rifle (PCP) uses a scuba tank to charge the rifle with 3000 psi of air. All of these pellets are capable of injury or death.
In general, some form of a .22 Long rifle. In larger calibers, worldwide, the AK47 is manufacturered by the millions each year.