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  #31  
Old 05-19-2017, 08:01 AM
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One last comment about the Viper vs. the Venom, and why I like the Venom better -


The Venom adjustment screws work great. They are easy to adjust, have positive clicks, and the adjustment does not drift when shooting.

In contrast, Vortex felt the need to add two adjustment locking screws to the Viper, in addition to the actual windage and elevation screws. After you adjust windage and elevation, you must then tighten the two adjustment locking screws so the dot does not drift. Seems like this is probably necessary due to some other compromise they had to make (in addition to the bottom-load battery) to make the sight lower. Unfortunately, there seem to be two issues with these locking screws:

1) When you turn them, they tend to shift the dot position you just dialed in, so it can take a lot of trial and error to lock the adjustment with the dot centered. Some folks learn which way the dot moves when the adjustment is locked and then zero their dot off center in the opposite direction, counting on it getting centered when they lock it in. Annoying.

2) Those locking screws are on the rear of the base. This isn't an issue for most mounting scenarios for a 22/45, but is when you are mounting it in a milled slide with the rear sight directly behind it. The screws are then inaccessible. Thus, you either need to drift out your rear sight when you are adjusting your RDS or unmount the Venom when you are done adjusting it to set the locking screws.


Factoring in those issues, the need to unmount it to replace the battery, and all of the issues people have had with it turning off due to bad battery contacts and I just can't get excited about the Viper.
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  #32  
Old 05-19-2017, 08:34 AM
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Originally Posted by jeronimo View Post


Why has everyone got their red dot sights so far back?
Is there reasoning behind this?
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  #33  
Old 05-19-2017, 09:58 AM
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Why has everyone got their red dot sights so far back?
Is there reasoning behind this?

Because that is where the rear sight dovetail is located, which the Burris mount uses.

More info here.
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  #34  
Old 05-19-2017, 12:23 PM
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Originally Posted by Scuba_Steve View Post
One last comment about the Viper vs. the Venom, and why I like the Venom better -


The Venom adjustment screws work great. They are easy to adjust, have positive clicks, and the adjustment does not drift when shooting.

In contrast, Vortex felt the need to add two adjustment locking screws to the Viper, in addition to the actual windage and elevation screws. After you adjust windage and elevation, you must then tighten the two adjustment locking screws so the dot does not drift. Seems like this is probably necessary due to some other compromise they had to make (in addition to the bottom-load battery) to make the sight lower. Unfortunately, there seem to be two issues with these locking screws:

1) When you turn them, they tend to shift the dot position you just dialed in, so it can take a lot of trial and error to lock the adjustment with the dot centered. Some folks learn which way the dot moves when the adjustment is locked and then zero their dot off center in the opposite direction, counting on it getting centered when they lock it in. Annoying.
I chose the Venom for the top-loaded battery too but your comment about it not needing locking screws for the adjustments is spot on. Many other red dots of it's type do use locking screws which are a pain to deal with and do indeed tend to shift the POI when tightened.

One exception is the C-more Railway which does have locking screws but they are accessible and don't alter the POI when snugged down.
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