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Rifle Scopes Explain zero stop and advantage of ffp

Re: Explain zero stop and advantage of ffp

FFP- the reticle is in the first focal plane, meaning its "viewed" size grows as you crank up the magnification. This allows you to use the ranging function on any power as opposed to a SFP where there is 1 set power that you have to use to range with

Zero Stop- it is a device that you can set yourself so that the elevation and windage knob bottom out at your zero or a few clicks below that so you dont get lost on the elevation knob when cranking on it. Some people set it at their zero while others set it 4-6 below their zero.
 
Re: Explain zero stop and advantage of ffp

Another inherent advantage of ffp is accurate holdovers at any given power. And if you miss the bull by x mils up/down and x mils right/left, it's easy to dial in the corrections, again on any given power.

The SFP decreases in reticle thickness relative to the target, whereas ffp stays constant but seems to "grow". It's really not bad at all. Say for instance on the Gen2XR, the reticle is .04mils thick or about .4cm. So at 1000m, the reticle obscures the target 4cm or about 1.5" regardless of power setting. That's not a lot by any stretch. Likewise, if the target is at 100m, .4cm of the target is covered by the reticle, again on any power setting. For SFP, say at 100m the reticle obscures 1cm of the target on 10x, it will cover the same target by .5cm on 20x.

This is the reason why bench shooters prefer SFP. They shoot at known distances and want the clearest field of view for the smallest targets.

-V-