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Modifying Nightforce turrets

 
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  #1  
Old 02-27-2010, 02:25 PM
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Join Date: May 2007
Location: Cornwall UK
Posts: 31
Modifying Nightforce turrets

Loosing your elevation Zero( being a whole turn out ) is something that does not happen very often if one is careful, but could have serious consequences if unnoticed ...

I thought long and hard about marking the turret some how to help remember which line the turret needs to be set on for zero.

I could have returned both my NXS scopes to Nightforce and have them fit `zero stop`elevation turrets , but that would have cost a couple hundred ....
so i thought about a different solution.

This is what I did.

First I removed the turret by slackening the single hex grub screw about five turns out.
Using a Dremel, I drilled a small hole in the lower edge of the turret on the zero line.

I then refitted the turret and tightened the grub screw. Using the hole as a guide I spun the drill bit by hand to mark the inner column.
I then rotated the turret two full turns ( 20 MOA ) and marked again in the same fashion.

Now when the turret is removed I was left with two small counter sunk part drilled holes which I filled with paint. The lower zero hole in green and the upper in red.

I used a 2mm drill bit in the Dremel for the turret hole , then spun a 1.5 bit for the marker hole in the column...then opened it up with the 2mm bit for the paint.

The turrets just pulled off, but i did notice there was a vacuum indicating a very good seal ..

Please note ..I have no intentions of swapping scopes around between different rifles and have 20 MOA rails fitted to both rifles these scopes are on , so cannot see any issues in the immediate future with carrying out this mod...

See images attached for a shooters eye view of how it looks...

This image is my turret set at a 100 yard zero...


This image is with the turret set at 20 MOA. ( two full turns up )


This image is with the turret removed but sat on the adjuster to show both marks..


I could have made the red hole location pretty much any where on the scope column, but set it at 20 MOA. This modification will only ever serve to indicate my 100 yard zero and nothing else. If I am more than one turn away from that reference point it shows in the `window` to serve as a reminder ...

Any comments or other ideas are always welcomed ..so fire away ..so to speak .
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Martin,
Cornwall. United Kingdom.


Last edited by Varmartin; 02-27-2010 at 03:58 PM.
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  #2  
Old 02-27-2010, 03:48 PM
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Join Date: Jun 2001
Location: Potomac River
Posts: 5,057
Re: Modifying Nightforce turrets

That is a very good idea and I am going to do exactly what you did. Last season I missed four shots in a row and could not figure out what was wrong until I got back to camp and went over everything and found I was off of zero by one whole rev.

The only question I got is why didn't I think of that myself.
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  #3  
Old 02-27-2010, 05:46 PM
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Join Date: May 2008
Location: South of Canada and North of Wyoming
Posts: 5,954
Re: Modifying Nightforce turrets

That is a dandy of an idea. I've been thinking of just getting a rubber gasket/washer and slipping it down to get me within 10 MOA, but with this idea, if you loose count, the 20 MOA mark is very handy.

-Mark

Last edited by MontanaRifleman; 02-27-2010 at 10:11 PM.
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  #4  
Old 02-27-2010, 09:23 PM
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Join Date: Feb 2009
Posts: 3,538
Re: Modifying Nightforce turrets

Great idea. Any do's, don'ts or words of caution as it looks like it could be tedious with one slip and ahhh S&%t. How'd you get the paint in such a tiny hole?
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  #5  
Old 02-28-2010, 04:17 AM
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Join Date: May 2007
Location: Cornwall UK
Posts: 31
Re: Modifying Nightforce turrets

The only tricky part was drilling the hole in the turret, I used a jewelers vise to hold it and wrapped it in card to protect it. Due to the tiny hole, I used the `Dremel` hand tool at fairly high speed. I found it a lot easier to hold it steady compared to a normal electric size power drill.

The turret is very thin !..so use very light pressure on the drill tip.

A steady hand is required to get a drip of paint into the marker hole. I used `auto`paint ...sprayed a bit into the lid and used a trimmed down artists brush...practice on a lid top first a few times.

I did get a bit of `paint creep` into the horizontal lines on the column, but used a pin to clean it our when dry...a tip here is to let the paint go off for 5 Min's before you drip it into the hole.

Hope this info helps...
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Cornwall. United Kingdom.

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  #6  
Old 02-28-2010, 07:05 AM
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Join Date: Feb 2008
Location: IOWA
Posts: 1,869
Re: Modifying Nightforce turrets

very nice, but I am wondering why you did not use the red color for your zero setting as it is more visible to see that you are back at zero. Also, don't quite understand the purpose of the 20 MOA mark, since you will be dialing your dope from your zero setting.
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  #7  
Old 02-28-2010, 09:00 AM
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Join Date: Feb 2009
Posts: 3,538
Re: Modifying Nightforce turrets

Good tips, thanks. You may have saved the day as I was thinking of using my cumbersome hand power drill, well atleast cumbersome for a job like this. I also thought maybe my drill press but hard to get a feel with my press on when the drill would break through. Dremill a great idea. I was thinking a toothpick to get the paint in but, I think i'd take your advice and practice first.
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