Mark 4 Internal MOA

Discussion in 'Long Range Scopes and Other Optics' started by Uncle Z, Aug 8, 2009.

  1. Uncle Z

    Uncle Z Active Member

    Dec 23, 2008
    Finally got my new Mark 4 out today to sight it in. Great scope btw.
    Is it common for a scope to have more internal moa adj. than advertised? My Mark 4 claims to have 70 moa on the specs but when I tested it after sighting in, I had 64 up from a 100yd zero and 16 down from zero.
    Last edited: Aug 9, 2009
  2. fireroad

    fireroad Well-Known Member

    Apr 22, 2009
    I wouldn't necesarily say it's common, but a number of folks on this forum have mentioned that there scopes have more moa than advertised. I guess they figure it's better to advertise low and come out higher than vice versa.

  3. Autorotate

    Autorotate Well-Known Member

    Apr 2, 2007
    A 6.5x20x50 I have has 76 MOA worth of knob travel.

    Although I've verified the drops with the rifle it's on out to 1000 yds, I haven't verified it's actually has that full adjustment at the range.

    If I was planning on ranges that needed the last 5 MOA of the scopes adjustment, the paranoid one in me would want to make sure when the knob is moving, the elevation is changing as least for the last few MOA/clicks.
  4. Mikecr

    Mikecr Well-Known Member

    Aug 10, 2003
    Just cranked a 25x Mk4 72moa(rated) + 1moa under knob zero.
    It must be a tolerance for knob machining/setting.
  5. Bravo 4

    Bravo 4 Well-Known Member

    Jul 20, 2007
    Like Auto said, the turret might turn without the reticle moving at the end of it's revolution. Check to make sure.