Woah, naw 130 meters is not far at all for an AR-15. Max effective range for a point target is 500 meters, meaning you can accurately hit an average sized person at that range. If you have something like a standard issued trijicon ACOG RCO, look at the BDC (Bullet Drop Compensation) lines go all the way to 800m. Interestingly enough too, the width of those lines is the width of an average person’s shoulders at that range.