A unique ram was performed on July 7th, 1941. The situation is described by three different sources. From the German side: "7th company of the 1st tank regiment and 2nd company of the 1st motorized regiment stopped and formed a defensive perimeter at an intersection north of Letovo. A fierce tank battle broke out. Around 17:00, the 1st platoon of the 7th company (Lieutenant Fromme) that was guarding the north side received a message about enemy tanks moving in to the crossroads. The company commander, Hauptmann von Falkenberg, saw that a Christie tank that Fromme destroyed rammed his tank (#711) at full speed. The next tank did the same. The enemy crews attempted to escape. Lieutenant Fromme climbed out of his tank and took them prisoner. However, due to reloading his pistol slowly, he had to defend himself with an ax against enemy infantry. He was forced back into his tank with light wounds. After that, more enemy tanks arrived, which tried to pass through the intersection at high speeds."
From the Soviet side: "A curious situation arose in the vicinity of village S. German tanks attacked our infantry. A platoon commanded by Junior Lieutenant Kozulenko received a mission to counterattack and break up the offensive. The only possible route to counterattack was through a bottleneck, where only one tank could pass, and it was currently occupied by a fascist tank. Kozulenko rammed it, knocked it off, and guided his platoon through the bottleneck. The fascists, stunned by this courageous push, turned around and retreated."
From Kozulenko's award order: "Comrade Kozulenko, while fighting German fascists on July 7th, 1941, in defense of the city of Pskov, in the region of Solovyi-Lopatino, where it was necessary to hold against an enemy attack. Comrade Kozulenko, with disregard for his well-being, rammed a German heavy tank with his light tank. As a result, both tanks caught fire, and the path for German tanks was blocked. Comrade Kozulenko left his tank, destroyed the enemy tank crew, and returned to his unit. - Commander of the 3rd Tank Division, Colonel Andreev."
Svirin, in his book "Assault Gun Sturmgeshuetz III" describes an instance of a tank ram that was closer to a car accident than an intentional combat action. Three StuH 42 vehicles ran into the advance guard of the 3rd Guards Tank army, quite literally. In the fog, both sides confused the enemy for their own, and climbed out of their tanks to resolve the issue, without bringing as much as a pistol. A StuH gunner that realized that was happening fired, but with an HE shell, killing both Soviet and German tankers. Two of the StuHs managed to escape, dealing minor damage to one of the Soviet tanks.