As a Sniper, I know that if I charge my sniper rifle, it will do more damage, but does the time for which it is 'overcharged' (i.e. scoped in when the charge meter is already full) affect the damage it does on its next shot?
The reason I ask is that, a couple of times, I have scoped in for about 30 seconds (in a sneaky spot) and have dealt about 500-600 damage (which is more than enough to kill even a fully-overhealed Heavy). Is this just a coincidence?
If 'overcharging' a sniper does increase its damage, is there an upper limit to how much damage it can do?