Had he dreamed of the hammer blow of that forty-five caliber bullet?

Hundreds and thousands of people have minds of this caliber.

What business could a detective of his caliber have to do with Bertrand Rockamore?

Sufficiently expert to care little for an enemy of his caliber.

Guns of all caliber belched their deadly missiles at the charging French.

Even a twenty-two caliber may prove effective at short range.

The caliber of the gun, for instance, was 25 parts, or 25/24th of the shot diameter.

Carronades usually ranged in caliber from 6- to 68-pounders.

A few iron siege guns of 18-, 24-, and 32-pounder caliber were on hand.

Caliber—diameter of the bore; also used to express bore length.