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What's going on with my .338WM trajectory?

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Unread 03-31-2010, 10:00 AM
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Join Date: Feb 2005
Location: USA
Posts: 2,598
Re: What's going on with my .338WM trajectory?

Originally Posted by Topshot View Post
Well I went out and tested the scope on a large piece of paper at 100 yards and found it to be out by about 8% in its elevation adjustment.
i.e. if I dial 20MOA I actually get 21.5MOA of movement.
This is quite repeatable and is not due to backlash as none was detected.

So it looks like I will have to come up with a drop chart for this particular scope as my balistic program only has IPHY and MOA not MOA+8%......LoL.

What scope are you useing
range it,check the wind, dial in correction, aim and only one shot
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Unread 03-31-2010, 05:59 PM
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Join Date: Nov 2008
Posts: 1,087
Re: What's going on with my .338WM trajectory?

It is a Clearidge 2.5-12.5x42 Ultra XP5 on 20MOA rail.

It is a nice scope to look through, so it is a pity that they could not get the elevation turret a bit more accurate.
I read somewhere that the industry standard for turret accuracy of movement, is 2.5% so it is a bit disapointing that this scope is just a bit less than 10%.
scientia est potentia
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