Vortex Viper PST zero stop is inconsistent

[ExtremeX]

I said MOA when I should have said 2-3 clicks… which is why I deleted it, and like I said, I will check it when I get home because I have actually confused myself.

My shims did settle after I installed them on my 1-4x… I actually cleaned the shims on my 4-16x before I installed them and the results were better. After they settle Ill fine tune it.

This is the nature of the shim style is that it’s not always going to stop in the exact same place. I knew that before I bought the scope. The entire purpose of the shims is to prevent you from getting lost in the dial, not to stop at the exact same place every time… This is normal operation for the optic.

If it bothers you that much, you should buy a higher end scope with a real zero stop… The PST is still a budget scope… but it’s a good scope.

[ExtremeX]

I get what’s happening in your scenario… unfortunately Vortex ships all the shims with the exact same thickness… 0.008”

You should call them up and see if they have others that vary in thickness to allow you to fine tune it better.

Personally I’m just happy that’s I don’t overshoot rotation into the next revolution, which is what the intent of the shim system was in the first place.

[Whiterabbit]

I'm still not being clear. when I installed, the turret stopped halfway through the range. That's fine. Previously, I saw what I thought was settling and added shim. Later, it "unsettled" and didnt return to zero. So I removed the shim. Changed loads and reset everything, have learned not to add that extra shim after settling. Now it seems to have settled again because it stopped near zero. Or did it unsettle and I'm not quite making it to my original zero? I don't know. I need to shoot a round to confirm which way it went. This variance is what is bothering me.

I dont need it to stop in the exact same place, just a reduction in variance.

I AM getting lost in the dial, the shims don't seem to prevent this in my case!

But the real bottom line, is your variance is 2-3 clicks? that is FAR more repeatable than my scope. Far more. I may be asking you more questions about how you have the shims in there. maybe mine are rotating? Or maybe they are supposed to and mine arent. but what I do know is that we differ in consistency by almost 10x.

[SoCalXD]

Tagged

[Jyruiz]

Interesting thread as I am looking to upgrade from a Millet TRS to a PST FFP 4-16x50. I think I will tag this.


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[Bete Noire]

I love how these are the differences between $1200 glass and $3000 glass. Things like that should be perfect at any price point.

[anthem]

Just watching, as this vortex is on my list.

[G38xOC]

just tried mine .. it stops at the same point everytime . but im not shooting by round by round . its possible that its rotating like u said

[ExtremeX]

I check mine too but never got back to this thread…

It’s by a couple clicks (not MOA)… but it stays where it’s supposed to.

I think I know what might be happening in your scenario… did you tighten all the screws on the turrets correctly?

Looks like there is a chance after the zero stop bottomed out the turret cap was just sliding. If you don’t tighten the cap tight enough, it would keep moving, but it won’t “click”.

You might want to confirm that, and if that’s not the case, might be about time to send the scope into Vortex because your experience does not mirror mine.

[Whiterabbit]

nope, definitely always clicks present. That is too obvious.

[Tbrad10]

RTFM (read the f...... manual) The shims do not bring it back to zero. You rotate till it stops then turn the turret back to 0. As someone mentioned it's only to prevent you from rotating another turn past your zero. It doesn't matter where it stops as long as you rotate the turret back to 0 you are zeroed.

[Whiterabbit]

I'm not sure you read the thread....

(I'm of course being facetious. Of course you didn't understand the thread at all if you posted that!)

[monk]

I just bought a pst but haven't put shims in yet. You staggered them right? I wonder if the turret is a bit jacked up?

[johncmng]

I notice in mine PST the zero stop will wander if I turn it hard enough. The key word is hard enough. I have to be consistent if I want to have the same stop each and every time. Also I notice that at different temperature I will have a different zero stop as well. This may be due to and metal expanding and contracting. With the turret have very fine adjustment and little expansion or contraction on the brass shim will definitely have an effect on the zero stop.

[high_revs]