New Posts New Posts RSS Feed - MOA Base/Mounts
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Check GunBroker.com for SWFA's No Reserve and No Minimum bid firearm auctions.

MOA Base/Mounts

 Post Reply Post Reply   Topic Search Topic Search  Topic Options Topic Options
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/17/2009 at 19:39
hunterwingler View Drop Down
Optics Master
Optics Master
Avatar

Joined: April/03/2009
Location: Idaho
Status: Offline
Points: 1420
What are the purpose of MOA Base/Mounts? i see them in 20moa & 30 moa. are they giving u another 20/30 Moa? 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/17/2009 at 20:10
RONK View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: April/05/2007
Location: United States
Status: Offline
Points: 3199
 Such a base slopes slightly forward by the angle indicated by the manufacturer (10, 20 or 30 Minutes of Angle), being measurably closer to the line of the rifle's bore at the front (muzzle) end of the base than it is at the rear of the base, (near the shooter's face.)
 This also tips the scope tube an equal amount, so that instead of being parallel to the bore as a conventional mount is, it is angled to the bore slightly. You will then need to use up that much less of the scope's internal adjustment range to get sighted in at longer ranges.
  For example, a given scope may run completely out of "up" elevation at only 600 yards, whereas even a 10 MOA base may gain him an additional several hundred yards, depending on caliber, load, etc.
 The downside of having such a base is that it's possible to run out of "down" elevation when shooting at closer distances.
 In other words, find out how much you need, based on your particular scope and shooting distances, and choose carefully.
 Do the math before purchasing, if you can.
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/18/2009 at 11:55
hunterwingler View Drop Down
Optics Master
Optics Master
Avatar

Joined: April/03/2009
Location: Idaho
Status: Offline
Points: 1420
thanks Ronk.. kind of what i thought just wasn't to sure.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/22/2009 at 11:49
kansas45 View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: June/25/2009
Status: Offline
Points: 7
Originally posted by RONK RONK wrote:

 Such a base slopes slightly forward by the angle indicated by the manufacturer (10, 20 or 30 Minutes of Angle), being measurably closer to the line of the rifle's bore at the front (muzzle) end of the base than it is at the rear of the base, (near the shooter's face.)
 This also tips the scope tube an equal amount, so that instead of being parallel to the bore as a conventional mount is, it is angled to the bore slightly. You will then need to use up that much less of the scope's internal adjustment range to get sighted in at longer ranges.
  For example, a given scope may run completely out of "up" elevation at only 600 yards, whereas even a 10 MOA base may gain him an additional several hundred yards, depending on caliber, load, etc.
 The downside of having such a base is that it's possible to run out of "down" elevation when shooting at closer distances.
 In other words, find out how much you need, based on your particular scope and shooting distances, and choose carefully.
 Do the math before purchasing, if you can.
 
 
So.......will the fat end of the rail be towards the muzzle, with the thin end closer to the shooters face, or is it the other way around?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/22/2009 at 12:00
Rancid Coolaid View Drop Down
Optics Jedi Master
Optics Jedi Master
Avatar

Joined: January/19/2005
Location: United States
Status: Online
Points: 7708
Other way around, tilting toward the muzzle, that way you get more of your elevation range for actual elevation adjustment.

But be careful, if you get a scope with limited elevation (like 40 MOA range) and mount it on a 20MOA base, you might bottom out the elevation before you are on target - and that is bad.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/22/2009 at 12:16
kansas45 View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: June/25/2009
Status: Offline
Points: 7
Thin end to the muzzle it is, then. This scope, WOTAC, has 80 MOA.
Thanks for your answer Rancid Coolaid!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/22/2009 at 12:23
Rancid Coolaid View Drop Down
Optics Jedi Master
Optics Jedi Master
Avatar

Joined: January/19/2005
Location: United States
Status: Online
Points: 7708
Here to help, let us know how it works out.

And pictures never go unappreciated!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/22/2009 at 12:37
RONK View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: April/05/2007
Location: United States
Status: Offline
Points: 3199
 Rancid is correct, confirming what I meant when I posted this earlier: 
 
 
Originally posted by RONK RONK wrote:

 Such a base slopes slightly forward by the angle indicated by the manufacturer (10, 20 or 30 Minutes of Angle), being measurably closer to the line of the rifle's bore at the front (muzzle) end of the base than it is at the rear of the base, (near the shooter's face.)
  ...snip...
 
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: August/29/2009 at 19:07
kansas45 View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: June/25/2009
Status: Offline
Points: 7
Here is what I ended up with on my Tikka T-3 Varmint. A EGW 20 MOA rail attatched to a ArmaLite EX0022 30 MM mount holding a WOTAC 4-14x50 scope.
 
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Similar Threads: "MOA Base/Mounts"
Subject Author Forum Replies Last Post
Winchester SX3 base or saddle mount mount Markin VA Rings and bases 0
Paul Yeager side mount scope base on Browning BAR mobill Rings and bases 0
Scope/Mount/Base Selection Rem700P308 Rifle Scopes 40
20 MOA base and interal adjustments adillemu Rifle Scopes 4
Questions about 20 moa scope base. Bigdave Rifle Scopes 14
MOA Based Reticle Range Table Urimaginaryfrnd Tactical Scopes 27
40 MOA base with SS 5-20 TeeRex Rings and bases 14
Nikon M223 mount 20 MOA?? skydriver Rifle Scopes 5
20 MOA Warne base Rattlesnakemp Rings and bases 2
20 moa base mburch64 Rings and bases 4


This page was generated in 0.406 seconds.