Hello my friends I need a little help from you about this item received from a friend. I don't know what caliber is and for what gun on the tank it was used. Thank you very much for your help.

Hello I came with news about this item on the bullet that can split the top in three parts I found this inscriptions A tank and under A022 and another inscription RIS-6-43. Please I want to know what kind of ammunition is. Thank you for your help.

What is the diameter of the bullet?

Hello Vern and sorry for the delay the diameter of the bullet is 24 mm but on bronze ring is 25 mm and in this news photos are some marks RIS-6-43 and A022.

I believe that is a round for the German 2.5cm PaK 113. The French originally produced it as the 25mm Hotchkiss and it was their main anti-tank gun. The Germans took over production in 1940 and renamed it the 2.5cm PaK 113. It continued in service through 1943 when it was deemed too weak to penetrate enemy armor. Several were sold to Finland to use against the soviets.