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Nightforce ATACR 5-25x56 F1

Posted By: 300_WizzM

Nightforce ATACR 5-25x56 F1 - 04/09/15 01:56 AM

Its on the way. Will have the MIL R recticle and .1mil turrets.

Now my question what height of rings. Was going to use seekins 34mm. Will be using a 20MOA rail. And from what I have been reading barrel profile comes into play also and it is a M24 contour (Krieger).

Also I hope everyone that suggested a mil/mil scope is right. LOL
Posted By: bobsumner

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 02:16 AM

Originally Posted By: 300_WizzM
Its on the way. Will have the MIL R recticle and .1mil turrets.

Now my question what height of rings. Was going to use seekins 34mm. Will be using a 20MOA rail. And from what I have been reading barrel profile comes into play also and it is a M24 contour (Krieger).

Also I hope everyone that suggested a mil/mil scope is right. LOL



Very nice, I expect to put this optic on my new build.
Posted By: 6.5x47Lapua

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 03:04 AM

I love seekins rings, but have a look at the arc m10 rings too.

That scope has a lot of potential. Great choice.
Posted By: 300_WizzM

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 03:28 AM

Originally Posted By: 6.5x47Lapua
I love seekins rings, but have a look at the arc m10 rings too.

That scope has a lot of potential. Great choice.


Which height will I need in these rings? They look cool and everyone talks highly of them. I'm willing to give them a try.
Posted By: 6.5x47Lapua

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 07:22 AM

Call either of them directly. I bet they will help you out.
Posted By: dee

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 11:04 AM

It depends on rings but medium or highs will likely work.
Posted By: J.G.

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 02:31 PM

Originally Posted By: 300_WizzM


Also I hope everyone that suggested a mil/mil scope is right. LOL


Really? After spending a day with me on the range I didn't convince you? I need to figure out where I went wrong...
Posted By: Ritter

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 02:52 PM

WizzM, here is a way to measure for ring height that is posted on another forum.

"...there is a systematic way of calculating ring height that doesn't require more than a simple elementary school ruler. You measure 3 things:
1. the height of the front of your base/rail from the barrel
2. the height of your rings from the top of the rail to centerline
3. the outside diameter of the bell of the scope (not the size of the objective lens)

Here is the equation:
[rail height + ring height] - [bell diameter x 0.5]
If the value is positive, then your bell will clear the barrel. Optimally, you want that bell to be about 1/4" or less over the barrel. This will give you a tight cheek weld and provide for more precise trajectory. Be sure to account for Butler Creek caps if you intend on using them.

If you are using a 40mm objective, then you can use the lowest rings and bases available, as the bell will certainly clear the barrel with no problem.

40mm or less - low rings all the time
50mm obj - low rings on < 5 contour
Medium rings > #5 and up (strait barrel get med high)
56mm obj Medium on < 5 contour (sometimes med high)
Medium high on sendero contour
High on >7 contour

34mm...
50mm objective - lows will work all the time
56mm objective - lows < sendero or #5 contour Sometimes lows will fit number 7 contour barrels, but it depends on how long the shank is after the smith installed it.
Highs for sure anything larger than #7"
Posted By: 300_WizzM

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 08:36 PM

Originally Posted By: FiremanJG
Originally Posted By: 300_WizzM


Also I hope everyone that suggested a mil/mil scope is right. LOL


Really? After spending a day with me on the range I didn't convince you? I need to figure out where I went wrong...


May have to come back and get you to teach me mils. Everything I have as of now is MOA. smile
Posted By: 300_WizzM

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 08:39 PM

Thanks for the info Ritter. Guess I will have to wait till I have all the pieces in hand. Was just trying not to have to wait on scope rings once I get my rifle back.
Posted By: J.G.

Re: Nightforce ATACR 5-25x56 F1 - 04/09/15 11:24 PM

Originally Posted By: 300_WizzM
Originally Posted By: FiremanJG
Originally Posted By: 300_WizzM


Also I hope everyone that suggested a mil/mil scope is right. LOL


Really? After spending a day with me on the range I didn't convince you? I need to figure out where I went wrong...


May have to come back and get you to teach me mils. Everything I have as of now is MOA. smile


Say when.

Or just call me...
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