It's simple: Bullets don't travel in a straight line but in a ballistic curve. The point of convergence thus is the spot where the bullet meets the theoretically elongated point of sight through your gunsights.
If you set the convergence to 200 meters horizontally they will converge at 200 meters but will land long of their target at the default vertical convergence i.e 300 meters. So they actually disperse again before they reach the vertical point of convergence.
If you have i.e. a tendency of not leading the target enough, this can help you score hits in your convergence.
That's why it needs to be set horizontally and vertically.
Last edited by 609_Huetz; 04-03-2011 at 10:43 AM.
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04-03-2011, 10:41 AM
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