An M8 of the 87th Cavalry Reconnaissance Troop destroyed a Tiger tank in the St Vith area during the Bulge by "shooting him up the a**" from close range. You can cross check this by consulting the US Army Armour School paper entitled "The Battle of St Vith 17-23rd December 1944."
On a slightly different note once when playing Close Combat V I had the rifle armed infantryman 'brew up' a Sherman tank. Last time I played the game as well.