Well I sadi some of that, and you are supposed to zero your sights in with both eyes open, but close one when firing, if you have both open, it is very hard to focus on the hair, and where it is going, and there is no true way to tell if your sights are perfectly zeroed in until you fire, so follow your instructions correctly. If you have both eyes open while firing, the cross hair will be blury, and not the outside of the scope. You want to be able to focus in on your target, then on your corss hair, and then back and forth, until you are sure it is a good shot. As for moving targets, you want to get a good lead, and focus on the target out in front, the cross hair, and then back, and wait until it is the perfect moment to fire. And usually with most sniper rifles, about a centimeter in font of the target, since the bullets move so fast. And as usual, aim for center mass, and not the head, the head is a tiny target from such a range, and can be very hard to hit. Aim for the chest, and if it doesn't kill him, it should, it's a huge hole, shoot him again whiles he's down, it's dirty, but better than letting the person lay there and bleed to death in pain.
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