Ha! He might have sniped 500+, but he killed THOUSANDS!.
One AAR states that he and his small team killed 1,500 Soviets in one engagment.
Simo was sniping Soviets on a road from across a frozen lake. After killing 50 or so Soviets in a few hours, the Soviet officers mounted a regiment-sized attack to run across the lake and kill the snipers. The Soviets lined up and charged across a 1/2 mile area still taking increased sniper fire. What the Soviets didn't know is that the Finns actually anticipated this and had placed explosives all over the frozen lake. When the Soviets got to the middle of the lake, less than 100m from Simo's position, they blew the charges and well over a thousand Soviets either drowned or froze to death.
That was one (1) engagement.
Next: the Finns attacked the hot kitchens and TENS OF THOUSANDS of Soviets starved or froze to death.
Anyways, ole Simo is my favorite Commie killer next to Henry Bowman ;)
Interesting article.