Vortex Viper PST 6-24X50mm FFP MRAD turret tracking

[red_star]

Just tried the turret tracking today for this 2-year old scope and I'm quite impressed.
@100yds Federal 168gr SMK on Remington 24" 5R #86591.

Lower left were first 2-shot group.
Then took 2 shots each at centre target, moving 2mrads up, 2 mrads right, 4 mrads left...then going back, 2mrads right and 2 mrads down for final 2 shots.

Only thing when I measured the reticle for 10 mrads @ 100yds, the 36" is just almost past 9.5 mrads. Sorry didn't get a chance to take pics of that though.

But I saw a review of Viper PST's 4-16X50mm and 10mrads is 36" @ 100yds!:
http://www.opticstalk.com/vortex-viper-pst-416x50-ffp-initial-impressions_topic24041.html

 

[joe n]

Thanks for showing! I have the same scope on my CTR and am too very pleased with it.

 

[Don_Parsons]

I'm running the 3-15 PST with MOA hash marks...

3 years running as it tracks like a dream,,, I hope my optic dosen't have the loose washer thing inside...

Dosen't really matter since its covered by the life time warranty... Ha...

 

[red_star]

Only thing when I measured the reticle for 10 mrads @ 100yds, the 36" is just almost past 9.5 mrads.

I would think that the firing line in my club is a bit further than 100 yds, reason giving me 36"(1 yard) is just 9.5mrads instead of 10.

 

[Bile]

...

 

[red_star]

Is it labeled 100 yards? 100 yards is only 91 meters. Most ranges are in meters these days. Some cheat it and put the firing lines to target frames at 95-97 meters. Unless you actually lase it, you'd never know.

mrad is ment for use in meters. 1 mrad = 1 cm @ 100 meters which derived from the worm rule of 1 mil @ 1000m = 1 meter on the ground. Based off the 6400 mil compass which is an approximation to a perfect circle which is rounded to 6400 since it's easier to do the math quickly.

Labeled @ 100yds. I would have to ask the board of directors or members who would know the validity of the 100yd measurement.
But you have a point that I should be using meters and not yards.
0.1mrad will subtend 1cm @ 100m, thus 10mrads = 1 meter @ 100meters.

Let's assume that in my range 100yd is 91meters, if I'm getting around 9.7 mrads on a yard stick (0.91 meter) @ 100 yards (91 meters).
With this measurements, I would think my scope's reticle calibration makes sense now.

 

[red_star]

a fellow member measured it with laser rangefinder and it was 106yds from target to firing line. That explains why I am getting ~9.7 mrads sighting in a yard stick at 100 yds.

 

[red_star]

btw, here are some pics, my first BA rifle from last year. remington 700 5R #86591, all stock, used Federal 168gr/175gr SMK