How to zero stop Vortex VENOM

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SPACEFORCE

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Purchased a 5-25x56 vortex venom to assist my long distance for me shooting (300 yards)
I did the same process as my diamondback which I'll describe down below but had an issue (Operator error) with the Venom.
The diamondback scope was zero stopped with no issues.

PROCESS

Zeroed my 10-22 at 50 yards great groups so went to the 100 yards and did another zero and not quite as good but went with it and wanted to zero stop at the 100.
Removed the elevation turret first held the turret so it wouldn't move then lifted the turret and turned to 0 dropped it on and replaced the screw.
Moved to the 200 yards looking to dial the elevation but after turning the turret about 5 MOA it immediately ran out of adjustment.
Now I assumed by setting the zero stop would return all the adjustment?
Someone else mentioned I need to turn the brass screw under the turret all the way to left or right too but I'm not too sure about doing that.

Any information appreciated
 
It looks like Vortex has used more than one design for their zero stop. Is this the scope you're talking about?

https://vortexoptics.com/venom-5-25x56-ffp-riflescope#features.tab+reticle-EBR-7C~MOA

If so, that model uses the RevStop zero system, see the video below to see how that works.


Now I assumed by setting the zero stop would return all the adjustment?
Click to expand...

Setting zero stop doesn't give you more adjustment. All it does is mechanically limit the scope from being dialed below your zero, that way after you've spent some time playing with the knob you can easily and quickly return to zero. (Or in the case of the RevStop system, it allows you to dial no more than 5 clicks below your zero.)
 
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SPACEFORCE said:
Purchased a 5-25x56 vortex venom to assist my long distance for me shooting (300 yards)
I did the same process as my diamondback which I'll describe down below but had an issue (Operator error) with the Venom.
The diamondback scope was zero stopped with no issues.

PROCESS

Zeroed my 10-22 at 50 yards great groups so went to the 100 yards and did another zero and not quite as good but went with it and wanted to zero stop at the 100.
Removed the elevation turret first held the turret so it wouldn't move then lifted the turret and turned to 0 dropped it on and replaced the screw.
Moved to the 200 yards looking to dial the elevation but after turning the turret about 5 MOA it immediately ran out of adjustment.
Now I assumed by setting the zero stop would return all the adjustment?
Someone else mentioned I need to turn the brass screw under the turret all the way to left or right too but I'm not too sure about doing that.

Any information appreciated
Click to expand...
You are out of adjustment. Not sure why. If you have a canted rail, is it on backwards? May be that you need a canted rail.
 
Mik123 said:
The revstop is probably limiting your adjustment since you zeroed your rifle while it was installed. Remove it, zero your scope, then reinstal the rev stop.
Click to expand...
Zero stop prevents you from adjusting downward; it does not limit your upward adjustment. What is left in the scope is what limits it.
 
Meroh said:
You are out of adjustment. Not sure why. If you have a canted rail, is it on backwards? May be that you need a canted rail.
Click to expand...
That was my first thought (needing a rail) but Google tells me you only need about 20-25moa to get to 200yds with 22lr, so it should be doable with the scope he has as it has over 40moa of vertical travel.

Obviously it all depends on the ammo, but here is one example I found:
With a 100yd zero you need 18.57 MOA for 200yds. With a 50yd zero you need 25.68 MOA for 200yds.
Click to expand...

At 300 he might need a rail, but 200 he *should* be able to get to with just the scope. Assuming its level to the rifle, which it seems like maybe its not.
 
Meroh said:
Zero stop prevents you from adjusting downward; it does not limit your upward adjustment. What is left in the scope is what limits it.
Click to expand...
I thought the Vortex Rev stopzero ring limits the scope to 11 mrad of vertical adjustment above zero and .5 below. Depending on the adjustment needed to sign in the scope you could have additional elevation adjustment above zero if you remove the revstop ring.
 
Mik123 said:
I thought the Vortex Rev stopzero ring limits the scope to 11 mrad of vertical adjustment above zero and .5 below. Depending on the adjustment needed to sign in the scope you could have additional elevation adjustment above zero if you remove the revstop ring.
Click to expand...
If such is the case, it is of little use for anyone shooting at a variety of ranges. Another reason to stick with Riton.
 
Zero stop limits elevation to just under 3 full turret turns. It helps with fast adjustments but not meant for very large ones.
Scopes come from factory set to middle of full elevation, so if it has full elevation of 60 MOA then you're limited to 30 MOA up. Adjusting windage reduces full elevation too. This is why rails, bases and rings that preset rake exist.
 
CeeZer said:
Zero stop limits elevation to just under 3 full turret turns. It helps with fast adjustments but not meant for very large ones.
Scopes come from factory set to middle of full elevation, so if it has full elevation of 60 MOA then you're limited to 30 MOA up. Adjusting windage reduces full elevation too. This is why rails, bases and rings that preset rake exist.
Click to expand...
IMO that would be a crappy zero stop system. On my CZ455 I had no issue directly mounting a Riton with CZ rings and zeroing at 20 yards; at 100 yards I only had about 20 MOA up adjustment left in the scope. I calculated that I had about about 55 moa down adjustment. The math told me that if I added a 40 MOA rail, I would still have about 15 MOA down beyond a 20 yard zero stop, and 60 MOA above. That is how a zero stop should work.
 
IMHO, ideally you never need to adjust down, only up, Vortex zero stop still allows 0.5 MRAD down when installed. 22lr are normally zeroed at 50m or yards. I got Strike Eagle scope thou that has total elevation of 110 MOA or 31 MRAD, mine is MRAD.
There is also a following to zero at 30-35m so you never need to dial down.
Your math is correct, adding 40 MOA rail will give you extra 40 MOA up but will take away 40 MOA from down adjustment
 
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