Sniper Accuracy

Here what I found about Sniper Accuracy.

Sniper rifles are guns specifically made to kill enemies from a far range. They deal extreme amounts of damage per shot, fire slowly, and have a built-in scope of huge magnification. Snipers are very clumsy and difficult to aim with at a close range. This is because you must be using the scope for the gun to have accuracy.

When operated without a scope, sniper rifles have no crosshairs to mark the center of your screen, and the accuracy is worse than that of a machine gun. Note that although the numerical difference in accuracy of sniper rifles seems insignificant, but it really is, because you are dealing with such far ranges.

All sniper rifles can be fitted with a suppressor (except the SR25 and its supply case counterpart) or a magazine mod.