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vortex viper BDC does it work

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/10/2009 at 17:45
Jeff7mag View Drop Down
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I'm thinking about getting the 4X12 BDC  viper  but have read Koshkins review that was great, he said he's not a fan of them. I'm shooting a ruger m77 7 mag with 162 hronady interlocks, imr 4350, the load has been good for me. Will it work or should I get something with a mil dot system. I'll be using this scope to hunt open terrain to where I could shoot 100 yards to 1000 yards, not that I would shoot that far. Your advice would be great.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/10/2009 at 17:55
Mangudai_87 View Drop Down
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If your leaning on the idea of 1000 yard shooting, or any distances between 100 and 1000 for that matter I would recommend a mil-dot. Far more superior in range estimation and ease of use especially if it is a fixed magnification. Its easier to use a mil-dot with a fixed mag than a zoom scope. But in the end it comes down to preference.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/10/2009 at 18:26
koshkin View Drop Down
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The Vortex BDC works if you know how to use it:

-calibrate it for your ammunition
-always be aware what magnification you are on
-have a good rangefinder

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/11/2009 at 10:40
Jeff7mag View Drop Down
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so as i change magnifications does that mean i have to refigure the drop dots. also does it mean the higher the magnification the further i can shoot.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/11/2009 at 12:53
koshkin View Drop Down
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The BDC is designed to work on the highest magnification, I think, but you still have to figure out how to set it up for your cartridge:

-what range to zero the rifle for
-what ranges the holdover marks correspond to

At other magnifications the holdover marks will have different dimensions.

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/11/2009 at 13:05
trigger29 View Drop Down
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X = 180 Y = 90 (X+Pyro)+(Y-Pyro) = ?

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Originally posted by Jeff7mag Jeff7mag wrote:

so as i change magnifications does that mean i have to refigure the drop dots. also does it mean the higher the magnification the further i can shoot.
 
Jeff. They markings in the reticle will appear to be closer together at higher magnification. If for example you have a mark that hits dead on at 500 yds with the scope on 7x, that mark might be dead on at 425 yards with the scope set on 9x, so as far as being able to shoot further out by turning the magnification up, no that is not necissarily the case. Your best bet for shooting out as far as you can would be to zero the rifle for what ever you deem to be appropriate, and use the bottom mark for what ever range you will shoot, and set the magnification to make that mark hit at that distance. This is how I can use a Zeiss Rapid-Z 800 to shoot 1000 yards. I zero for 400 yards, and with the scope on 10.5x the 800 yard mark is dead on at 1000 yds. The other way of course would be to just zero, and put the scope on it's highest magnification, and see what yardage the marks hit at. This would be the easiest. I hope at least some of this makes some sort of sense to somebody.
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