This may cause the long range shooter cheering section to blush but here is some data on sight magnification for ww2 tanks
French CharB & S35 tanks had sights with 4 power magnification.
Soviet KV-1 and T-34: sights had 2.5 power magnification.
Sherms: looks like they had only 1.44X
Tiger 1 Articulated telescopic sight model TZF-9: 2.5X
PZ III/IV TZF-5 by Leitz optics: 2.5X
PZ Late models, some had TZF-12a variable magnification sights: 2.5/5X
Late model M10 tank killer had 6X sight.
much of the above came from airlandseacraft.com
As you can see these were not exactly laser sights. Range estimation was more or less made by the commander with range finding binocs and a sense of range provided by experience.
If you could round up an old .22 scope with 2.5X mag and then sight in some SUV's 1/1/2 miles away it gives you an approximation of the sight picture of the 2.5X sights. The cross hairs obscure most of the target. These sights were not set up for killing targets at extreme ranges. Since I doubt that the coding for range, velocity, damage etc can take in all the variables why not just limit damage to within 1000 meters (screams of rage in background). Players might have to use a little more strategy to get kills, rather than set back at mucho killometers in a Tiger and up their score.