Vector optics sentinel x pro with zero stop

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Bigragu

Bigragu

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Jul 8, 2018
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Anyone here using this scope? The zero stop function, omg, what is up with that? For the life of me I can’t set it so it allows me limitless revolutions of the elevation turret CCW upwards, like all my other scopes can with a zero stop. This X-pro I can only get about 3/4 of a whole turn upwards past my zero stop set point. Any users of this scope having or seeing this same issue?
 
Mike, I followed the install instructions and when that didn’t work for me, I reached out to vectors tech support and they were very very helpful, but it still didn’t work out for me. See, it’s the design of their zero stop. Yes it will stop when turning the elevation knob to your preset zero(mine was at 50 yards), but to adjust upwards I only got just under one whole revolution and the elevation turret would come to a stop like it had a zero stop to raise upwards, also.

Unlike my delta Stryker that was also zero’d at 50 yards, I could adjust upwards(CCW) as many turns as I want, then rotate cw back down to my zero cause that’s what zero stops do!!
 
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Bigragu said:
Mike, I followed the install instructions and when that didn’t work for me, I reached out to vectors tech support and they were very very helpful, but it still didn’t work out for me. See, it’s the design of their zero stop. Yes it will stop when turning the elevation knob to your preset zero(mine was at 50 yards), but to adjust upwards I only got just under one whole revolution and the elevation turret would come to a stop like it had a zero stop to raise upwards, also.

Unlike my delta Stryker that was also zero’d at 50 yards, I could adjust upwards(CCW) as many turns as I want, then rotate cw back down to my zero cause that’s what zero stops do!!
Click to expand...
@Bigragu In your opinion is this a design flaw or a QC issue with your unit?
 
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To answer both last posters, no, I did not hit my limit. I use adjustable mounts on my crown and set the mounts so at my 50 yard zero I was only approx. 1.5 turns down till I hit full stop. That way I had plenty of up travel past 50.
With the zero stop I had both zero stop down and up! And thst answers your question, Dave, yes I feel it is a design flaw.

Below are pics of what I sent tech support. So when you pull the top turret off you’ll see what I’m calling “plate A” set at the bottom of the elevation knob tower. That oval slot faces up. If you took that plate A off, underside of plste A is a pin and a cut out oval slot same as the plate A.

Then in a seperate baggie was the ZS plate. Basically a doughnut ring with a pin underneath. On the sides of this plate were three set screws to anchor onto the elevation tower when you want to lock in your zero. Standard industry stuff, right? All except for plate A with the oval slot. You can see how a pin on the ZS plate would come to a halt both turning CW and CCW.
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I really wanted this zero stop to work. I already owned the sentinel 10-40 x 56 with resettable to zero turrets and have it mounted on my crown EBR 50 yard bench gun. I just thought having this same model with a zero stop would be the coolest, but it didn’t work out, unfortunately. I remounted the original sentinel and just going to make do without a ZS.
I wanted to add that Maria in tech support was very helpful from start to finish.
Vector just needs to revisit that design, to allow unlimited rotations upwards
 
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Not to beat a dead horse since it sounds like you have moved forward, but personally curious about the design. While limited rev designs are annoying, that zero stop setup looks similar to some Vortex models. I get that the pin slides in the slot, but aren’t you saying washer A had a pin on the bottom that also rides in a slot at the base of the turret? Seems like that should be cumulative and give you closer to 1-3/4 turns up from your stop position. Still limiting, but better at least. Or did I misunderstand?
 
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It is correct that the turret will be limited to 1.75 upward turns beyond the zero stop once the zero stop is engaged. The issue is that the turret itself does not raise to allow the stop to bypass the stop point. There is an intermediate race that allows the pin to rotate an additional turn, then stop. It is limiting, but I can't imagine needing more than a turn from 30 to 100 yards. It should get you to 150. The nice part is that you don't have to worry about crowding the end of the turret range, which can damage internals if done roughly.

Of course, you still have the full range if the zero stop is not engaged. If the need is to have the zero stop closer to the bottom of the range and retain full upward movement to the limit of the mechanical range, I would suggest the 5-30 Continental. It has a zero stop that works in a more traditional method. It also has a pop-up rev counter similar to the Schmidt-Bender, and since it is a 34mm tube, it has even more vertical adjustment to begin with.

Hope this helps.
 
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