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ok I got a 8-32x56 BR nightforce scope 1/4 MOA adjustmants, 50 MOA's of elevation, Armalite AR30 - .338 Lupua, standard scope rail, will I get out to 1600 meters or do I need a 15 MOA Rail?????
 

Dave King

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Joined
May 3, 2001
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2,366
50 MOA of elevation available after a zero or 50 MOA total?? What's your zero distance? I haven't run any numbers but I don't believe 50 MOA will make it from 100yd to 1600 no matter what, probably not even 65.
 
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704

Guest
300 meter zero, I am guessing 50 MOA after zero, I have not mounted the scope yet, I am only going off what the manufacture says.
Thanks

[ 05-08-2004: Message edited by: fmsniper ]
 

skidlyman

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Nov 4, 2003
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129
Location
South central Montana
I'm going off the specs for my 50bmg, 338 Lapua should shoot as flat as the 50. zeroed at 200yards it takes me 38.75 moa of elevation for 1600yards. your best bet for a sloped rail would equal 1/2 of your usable moa range.
 
G

Guest

Guest
fmsniper--
You have 50 MOA total, not 50 from your 300m zero. You will have 20 to 25 MOA from your 300m zero, so a sloped rail is a must if you wnt to reach 1600... I would get at least a 20 MOA rail, possibly even a 25, if available. This will put you in the bottom revolution of your elevation turret, allowing you to use nearly all 50 MOA of internal scope adjustment.
 

Brent

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Joined
Jun 12, 2001
Messages
2,537
Location
Palmer, Alaska
Burris rings with the inserts will also work.

Side note - Before getting anything over a 20 MOA tapered base, you might want to fit a standard base with the rings you plan on using to see how far off the bottom you end up. You "can" always shim it when you bed it if you can't get get it boresighted at 100, and I would check it first no matter what MOA base. Ended up 6 MOA short of the 100 yard zero on one of my Dad's rigs here the last time, had to re-bed with a shim under the front. Aluminum tape works well for a shim but, I don't recommend it but for just for a small point under the base the size of a match head or so with multiple layers just to hold it up while the bedding cures. I think a layer of epoxy between the two is much less compressive considering the glue on the tape.
 

MachV

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Joined
May 31, 2001
Messages
1,590
Location
Casper Wy
Seams to me I had an 8-32Br but it had 1/8th MOA clicks and was shy of 50MOA of adjustment.
If it had the R2 reticle in it you could gain enough MOA to get to 1600 but a 30MOA rail would help a lot.
 

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