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Nikon M223 mount 20 MOA??

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: January/30/2012 at 16:28
skydriver View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: January/30/2012
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Hello all,
I recently purchased a RRA ATH and am going to outfit it with a Nikon M223 with BDC reticle.  I know there a lot of mounts available but for this build I'm going somewhat budget conscious.  I'm looking at the Nikon M223 mount or the Burris PEPR.  I noticed the Nikon mount has a built in 20MOA.  My question: The M223 BDC scope has a reticle designed to compensate out to 600 yards.  So, is the 20 MOA on the mount to allow for farther shots?  Also, will the 20 MOA limit close in shots?  Also, the PEPR doesn't have built in MOA...will that limit things?  I'm kind of (a lot) confused.  Any info/direction would be appreciated. 
Thanks!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/03/2012 at 14:05
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Optics GrassHopper
Optics GrassHopper


Joined: January/30/2012
Location: N. Mississippi
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anyone?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/03/2012 at 14:31
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Optics Jedi Master
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Superstool

Joined: January/03/2008
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The 20 moa would only benefit you if you are going to be turning knobs.  With a BDC reticle it is kind of pointless. 

On scopes that you are turning knobs and shooting long range it offers a couple of benefits.  One is it will allow you to zero your scope closer to the bottom end of the elevation travel so you have more up to get to long distances.  Another is it will keep your erector system more in the center of the scope tube for medium and longer distances which will give you better image quality and allow your scope to perform better. 

However the M223 scope have both a 223 reticle and adjustable knobs.  I think they are designed to be used with a 20 moa mount.  So I would probably get one for it. 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/03/2012 at 16:30
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Resident Redneck

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Scopes have a limited amount of internal adjustment a lot seem to have about 50 moa of internal adjustment so figure half of that up and half of that down.  It doesnt always work out that way so if someone wants to shoot 1000 yds with tactical knobs to dial in correction they add a plus 20 moa base to shift the scope so that it would shoot 20 inches higher at 100 yds.  With scopes that have over 50 moa it really isnt a problem doing this. With scopes having only 50 moa its a bit risky.  With scopes having only 40 moa of internal adjustment its a mistake to use a plus 20 moa rail.  With a .223 the bullet runs quite low on energy at longer distances so it is not an ideal cantidate to shoot ultra long range but some guys do it just to polk holes in paper most who shoot past 600 use a 1 in 7 twist barrel shooting 80 gr bullets and loading them one at a time.   Some scopes are built with the idea they are going to be used on a flat rail without the plus 20 moa cant to it.  One such scope is the Leupold Mk4 M3 10x40  and with a plus 30 moa rail it shoots 30 inches high at 100 yds and can not be adjusted lower. Ask me how I know Cencored
If you can beg borrow or steal the money to buy this instead this is a better choice:
SWFA SS 3-9x42 Tactical 30mm Riflescope SWFA SS 3-9x42 Tactical 30mm Riflescope
Stock # - SS39X42MQ
  • Matte
  • Patented First Focal Plane Mil-Quad Reticle
  • 30mm
  • OK for .50 cal
  • 0.1 MRAD
$599.95 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/05/2012 at 22:19
skydriver View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: January/30/2012
Location: N. Mississippi
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thanks for the replies and clarification.  Also, sounds like I may need to do some more research on the swfa ss scope...
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: February/05/2012 at 22:30
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Optics Apprentice
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Shouldn't have to waste much time doing research on the SWFA SS line of scopes... It's pretty hard to find a negative comment about one! Yippee
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