Shortly before the beginning of the last British offensive in Egypt, the
Italians put into service a 90-mm multipurpose gun, whose muzzle velocity,
range, and weight were given in the summary of Italian weapons in Tactical and
Technical Trends, No. 11, p. 45. It is now known that the length of bore
is 53 calibers rather than 50, and that the practical rate of fire is 15 to 20 rounds
The gun has a steel monobloc barrel with a detachable breech ring, allowing
the barrel to be changed. The weight in action is given as 11,220 pounds.
Normally, the gun is tractor-drawn on a four-wheeled Lancia Ro trailer,
although a self-propelled model, utilizing a standard Italian tank chassis, has
also been reported. In the case of the latter model, the tracks of the tank are
apparently locked before the gun opens fire.
Since the characteristics of this gun are similar to those of the German 88-mm weapon, a
correspondingly similar tactical employment may also be expected.