LOL, the problem isn't "technology," but the particular shortcomings of the technology being applied and in the way applied in this case, versus some of the claims of what the gun can accomplish with the sight.
No matter how advanced the rifles, the scopes, and the ammo,,,we are still throwing rocks at them,,,I can't wait for a light or particle based weapon that is not affected by gravity.
You will never see
this. Even light is affected by gravity as is time. At combat distances, light weapons would not be discernibly affected by gravity, but they are affected.