Re: Yet another "What scope to buy?" question...
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TexasVet</div><div class="ubbcode-body"> FFP/SFP thing is new to me...
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FFP means that the reticle is small and fine at say 4.5x and would grow as you incresed magnification to say 14x. That means the reticle changes size, with the magnification level, making milling targets consistent, through out the power range of the scope.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: TexasVet</div><div class="ubbcode-body">
Ranging with the scope is something new to me btw...and I have been told that mil-dot is not for novice and not for moving targets...</div></div>
Ignorance is bliss, unless your holding a rifle. One math equation, though there are several, is all you need to memorize to always be able mil targets, as long as you know the size of the targe. Find the equation below that applies to your scope/situation.
This is the equation that I use, as it requires the least amount of math:
Object size (in) x 27.77 divided by mils read = distance in yards
Here are a bunch of others that do the same thing.
Target size (in yards) x 1000 / Mils read = yards to target
Target size (in meters) x 1000 / Mils read = meters to target
For Meters:
Object size (in) divided by 39 x 1000 divided by mils read
Object size (in) x 25.4 divided by mils read
For Yards:
Object size (in) divided by 36 x 1000 divided by mils read
Object size (in) x 27.77 divided by mils read
Hitting moving targets when you know your hold offs, is far easier when you have hold off points on the scope, and accurate measurements built in to your reticle.
So the differance milling targets using a FFP and SFP are, that a SFP scope is only accurate at one power seting, typically the highest magnification.