what calibers are legal in Mexico
no, 50. cal are illegal in australia, but theres some similar legal calibers, like the 460.
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.
The model 1890 Winchester was only chambered in .22 short,22long,22 long rifle,or 22WRF calibers which were all rimfire calibers.
In general, some form of a .22 Long rifle. In larger calibers, worldwide, the AK47 is manufacturered by the millions each year.
Impossible to answer without knowing who made it, models, calibers/gauges, etc..