How much total elevation?

Discussion in 'Long Range Scopes and Other Optics' started by joseph, Jan 22, 2010.

  1. joseph

    joseph Well-Known Member

    Messages:
    1,238
    Joined:
    Jul 26, 2009
    I am looking at two scopes. One is 4-16x50mm and has 75 MOA.

    The other is 6-24x50mm and has 65 MOA.

    They are both Vortex Viper PST FFP scopes with the EBR-1 reticule.

    How many inches of total elevation does each have and which one would you choose. There is only about $50 difference in price.

    I plan on using it for long range hunting and target shooting with a 6mm Norma BR. pushing Berger 105 gr. VLDs at about 3,000 fps.

    joseph
     
    Last edited: Jan 23, 2010
  2. NomadPilot

    NomadPilot Well-Known Member

    Messages:
    510
    Joined:
    Aug 28, 2009
    The "inches" is irrelevant and varies with distance. You'll find that, apples-to-apples, greater magnification means less adjustment travel.

    Questions:


    1. How much MOA do you need with your load to get to the distance you intend to shoot?
    2. Do you want to use a MOA base? Do you want to avoid it?
    3. Do you have to dial all the adjustment or are you ok with dialing some and holding-over for the rest?
     

  3. britz

    britz Well-Known Member

    Messages:
    1,217
    Joined:
    Mar 11, 2007
    since you say long range hunting and target... I'd go for the bigger powered scope since they are the same brand and quality. looks to me like you would be able to reach 1000 yards w/ that elevation if things work out decent. If not, you can get a sloped mount. You will appreciate the higher power when trying to hit small targets at great range.

    JMHO.
    Mark
     
  4. Buffalobob

    Buffalobob Writers Guild

    Messages:
    5,085
    Joined:
    Jun 12, 2001
    You will need about 28-30 MOA of UP elevation to shoot to !K on a cold day at sea level. You can use JBM

    JBM - Calculations - Trajectory

    You need to remember two things:
    1. Without a slanted base or Burris Signature rings with inserts only about half of the available elevation is UP. The other half is down. So you would be well advised to use a 20 MOA base.
    2. Despite your belief that you are fixing to win the Powerball lottery and that the top of your rifle receiver is flat; the real truth is neither of these things are very likely to be. So do not be surprised when you find that the receiver has some slant one way or the other.
     
  5. theodore

    theodore Well-Known Member

    Messages:
    293
    Joined:
    Feb 9, 2009
    +1 for buffalobob

    MOA is proportional to the distance. One moa is a little over 1" at 100 yards, One moa at 700 yards is about 7", two moa at 800 yards is about 16". Make sense?
     
  6. joseph

    joseph Well-Known Member

    Messages:
    1,238
    Joined:
    Jul 26, 2009
    I am starting to get the picture guys. I wanted to use Burris Signature Zee rings, but I can't find the inserts for 30mm scopes. Does anyone know where I can get them?

    I have read that Vortex Viper PST scopes are very good. How do the ones I am considering compare to Leupold FFP and Night Force FFP scopes?

    Vortex Optics - Viper 6.5-20x50 PA Dead-Hold BDC Reticle

    joseph
     
  7. macv

    macv Active Member

    Messages:
    34
    Joined:
    Sep 6, 2004
    When you buy 30mm Sign. Z rings, they come with inserts.
     
  8. joseph

    joseph Well-Known Member

    Messages:
    1,238
    Joined:
    Jul 26, 2009
    macv,

    DO YOU MEAN THAT THEY COME WITH A SET OF DIFFERENT INSERTS TO "SLOPE" THE SCOPE TO 10, 15, 20 AND 30 DEGREES?

    joseph

    PS: Didn't know I had the caps locked on.
     
  9. macv

    macv Active Member

    Messages:
    34
    Joined:
    Sep 6, 2004
    Hi, they come with 3 sets of inserts. The ones that are in the rings are of zero degrees. Then they have 2 ea. inserts of +.010 and 2 ea. of -.010. Just checked my set which I have not yet installed. Hope this helps.