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Vortex Viper 6.5-20x50 & 300 WM problem

 
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  #15  
Old 03-13-2012, 08:17 AM
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Re: Vortex Viper 6.5-20x50 & 300 WM problem

Quote:
Originally Posted by Coyboy View Post
swap the rings end for end and see if that makes a diference.

I was thinking the same thing. I always mic the distance fom where the ring sets on the rail to where the scope sits on the ring. I have seen up to .007" difference in a pair of rings. Move the tallest one to the rear.


Jeff
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  #16  
Old 03-13-2012, 08:27 AM
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Quote:
Originally Posted by Broz

I was thinking the same thing. I always mic the distance fom where the ring sets on the rail to where the scope sits on the ring. I have seen up to .007" difference in a pair of rings. Move the tallest one to the rear.

Jeff
The math doesn't work out. That could only account for a 5-10 moa alignment error. The OP has a 40-50 moa problem.
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  #17  
Old 03-13-2012, 08:33 AM
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Re: Vortex Viper 6.5-20x50 & 300 WM problem

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Originally Posted by bruce_ventura View Post
The math doesn't work out. That could only account for a 5-10 moa alignment error. The OP has a 40-50 moa problem.
I agree but remember the difference will double if moving a short ring from the rear to the front. So a .007" difference could have the affect of .014". Also this will be affected by ring height too. All that said I think it is time to pull the scope and get a good straight edge on top of the rail. If the rail to receiver top does not match up the problem could have neen induced while tightening the two surfaces to each other.

Jeff
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  #18  
Old 03-13-2012, 06:02 PM
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Re: Vortex Viper 6.5-20x50 & 300 WM problem

Took it in today to a shop that specializes in long range shooting. They put a laser on it, did a few other things and were convinced it was something during the manufacturing process of either the action or the barrel or the attaching of the two. Their suggestion was to buy a set of Burris Signature Zee rings that has an additional 20 MOA built in. They confirmed that everything was set up right and that I only had about 6 moa left to go up. So hopefully after I switch out rings, I should have around 26 MOA to play with.

Thanks for all of your insight and suggestions helping out a newbie, very much appreciated.
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  #19  
Old 03-13-2012, 09:42 PM
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Re: Vortex Viper 6.5-20x50 & 300 WM problem

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Originally Posted by bullelk14 View Post
They confirmed that everything was set up right and that I only had about 6 moa left to go up. So hopefully after I switch out rings, I should have around 26 MOA to play with. .

26 moa.... Man that sux. I would be for sending it back or something.

Sorry to hear this.

Jeff
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Old 03-13-2012, 10:06 PM
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That large of an alignment error is not acceptable for a production rifle. Can you return it?

If not, I would bed the base to get it closer to proper alignment, and I would use Signature rings to fine tune the scope alignment.
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  #21  
Old 03-13-2012, 10:07 PM
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Re: Vortex Viper 6.5-20x50 & 300 WM problem

I have almost the same thing happening with my Viper pst also. I also have a 20MOA weaver tactical base on my winchester action with a kreiger barrel on it. I have a grand total of 24 moa of upward travel. I am thinking it is the base or the rings that I have on it, they too are weaver rings as I didn't have the money at the time to get good stuff but now I wish I wouldve. The reason I say this is I did have a Leupold LR one piece base with the standard rings before I put on the weaver stuff and had 36 moa of up travel. So long story short, I am going to ditch the cheap stuff and buy NF, you do get what you pay for.

On another note, not too impressed with the vortex pst
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