What does it mean when someone says in reference to guns, l have a 22 and 76?And whats a caliber?
when l said 22 and 76 that was just an example.

Caliber is the size of the bullet, ex.-.45cal is .45 of an inch
9mm is a .38cal round.

A 22 is a .22 caliber rifle whereas ''76'' refers to the model number of a gun. Caliber is the decimal measurement of the width of the projectile that comes out the barrel as in..a .257 Roberts is considered a .25 caliber and the bullet measures exactly .257 of an inch across or about four hairs thicker than a quarter of an inch. Make sense?

When someone says they have a .22 they mean they have a .22 caliber firearm
When they say they have a 76 they mean they have absolutely no knowledge of firearms or they are talking about a model number (that l am not familiar with)

Caliber is the diameter of the bore of the gun expressed in inches
a 22 is 22/100 of an inch in diameter

When talking about a model number most people will usually include the maker
ie
'' l have a Beretta 92''

A .22 is the caliber of the bullet fired from the gun.The caliber is a measurement of the inside diameter of the barrel of a gun,so.22 caliber is .22 of an inch wide,thats imperial measurement,Europeans use metric,mm as 9mm or 5.56mm(M-16 round/bullet).Finally gauge is used for shotguns exclusively & is also a width measurement but it is a little more complicated,it (gauge)is the amount of uniform lead balls will fit down a 30'' barrel & weigh a lb.i.e.12ga.=12 lead balls=ing a lb. sitting flush inside a 30''barrel,whew a mouthful.A 76 is most likely the make or model # of a specific firearm.

Could be referring to the caliber or model number