[mkr8683]

It sounds to me like there's a misunderstanding of what it means to have a weapon boresighted. It's simply placing a laser-emitting device that looks like a cartridge into the chamber, aiming the weapon at a target, and adjusting the sights to wherever the laser is showing.

I don't understand how anything can be too close to shoot. In my infantry days, we were taught, when using iron sights, to 'fill up the peep sight with meat' and pull the trigger. I was also a gunner on a M2A3 during my Bradley misadventures at Fort Hood and briefly in Baghdad. I still can't fathom a target being too close for the sights.. maybe they couldn't traverse? Maybe the Red tanks were on higher or lower terrain?