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Can anyone explain to me how to use target knobs on a tactical scope? Im confused anout bullet comensation and everything. Im not sure where to adjust the knobs for different ranges and/or how to calculate where the bullet will go and then compensate for it. Do I have to get a balistics chart or something. its for a .308 rifle.

Any thoughts? sites? books?

Thanks really hope you guys can help lead me in the right direction
 

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The target knobs just give you the ability to adjust elevation or windage on the fly and then easily go back to zero. For example; say you are zeroed at 100 yards and shooting a 168 grain bullet at about 2600 fps. Your know you drop at 300 yards is 15 inches aka 5 MOA. With this information you can shoot a target at 300 yards and all you have to do is dial the elevation to the "5" mark on the turret and you should be on the money. You can do the same thing at any range a long as you know what adjustments you need in MOA (minute of angle). However, you don't want to relay on the printed ballistic data alone. You really need to go out and shoot the rifle at these ranges and see exactly where the impact is. Keep a data book and jot all this information down for future reference. All rifles will be a little different depending on barrel length, scope height, temperature, ballistic coefficient of the bullet, velocity humidity, altitude, etc. Hope this helps ya.
 
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