Re: Vortex Razor - max magnification
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: jasonk</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BobinNC</div><div class="ubbcode-body">Not to dissuade anyone from buying what they like, nor am I trying to sell a Vortex Razor to anyone; but I hope you do realize that increasing the power from 20x to 25x, makes a 1000 yd target appear only 10 yds closer (Apparent distance is 50 yds for 20x vs 40 yds for 25x)
For a 1500 yd target the apparent difference is a whopping 15 yds (75 yds for 20x vs 60 yds for 25x).
Just saying you are chasing very little in apparent target resolution in going from 20x to 25x out to 1500 yds or so.
Just saying....
Bob</div></div>
I don't think you need over 20X either, but I am trying to follow the math.
So if at 1000 yards a 10x scope makes a target appear as if it were at 100 yards at 1x?
So at 1000 yards a 20x scope makes a target appear as if it were at 50 yards at 1x?
Is that math right?
So at 1000 yards a 25X scope makes a target appear as if it were at 40 yards at 1x is what you're saying? If so, then 50 yards is 25% farther away than 40 yards....so I can see an extra 5X making a difference for some. 10 yards closer is not anything at 1000 yards, but at 50 it's big.
Now, useable maginification due to mirage and a bunch of other factors is debatable. I shot 16X at 1000 recently and did very well against my competitors, many of them were using 24-25x scopes, so I don't necessarily feel that the 20x top end of the Vortex is a drawback. </div></div>
Yes, Jason your math is correct.
Take the target distance and divide by the scope power. That is the way the target will appear as if you were looking at it with your naked eye.
So, at 10x @ 1000 yds target will "appear" as being 100 yds away. @20x it will "appear" to be 50 yds away, and @ 25x it will "appear" to be 40 yds away.
If you want to do a test, take your 1000 K yd target and place it 40 yds away, and look at it with your naked eye. Now move it to 50 yds, and assess it again. That's the real difference between 20x and 25x, and it's not much in aiding the accurate placement of crosshairs.
However, if your shooting for groups @1Kyds or your target is very very small, as opposed to say tactical comps, then yes, that extra 5x of magnification or more can be a big help.
In other words, what you are going to do with your rifle, ie: your application, should drive the magnification decision, not current fashion.
But whatever floats one's boat, is OK by me.
Regards,
Bob