[AmoArma]

Here's another interesting page with specs for the Steyr-Mannlicher sniper gun with a new 15.2mm Anti tank Sabot projectile which could have caused the so called "pencil hole" sized intrusion.

http://world.guns.ru/sniper/sn46-e.htm

I remember that there was an article last year about sales of these guns to Iran. Then lo-and behold, there was an article recently: Wednesday, 28 December 2005, 16:42 GMT US penalty for Iran sales 'wrong' Steyr-Mannlicher building in Austria China, India and Austria have condemned a US decision to impose sanctions on nine firms which it believes have supplied Iran with military equipment.

China, which is home to six of the firms concerned, has demanded that the US State Department lift the sanctions.

The Austrian interior ministry defended the sale of about 800 sniper rifles to Iran by an Austrian arms manufacturer as "unimpeachable".

Maybe in 2003 they were evaluating the effectiveness of the Steyr-Mannlicher... with the 15.3mm anti-tank round. And found it obviously effective.

[Cadet Seaman]

While this all seems very plausible and intesting, I'm pretty sure it wasn't the IWS 2000 or any other type of Anti-Matrial rifle, most AM rifle's use Tungsten as a penetrator and this round had a motor on it. The Tungsten would have worn down too fast to do that much damage, now if it where a AM rifle it would more likely be a DU round that was fired, but even the U.S. doesn't use DU in anything smaller than 20mm, unless it's a Vulcan.