Zeroing red dot for 9mm carbine

Discussion in 'Scopes & Optics' started by shibbershabber, Oct 8, 2018.

  1. shibbershabber

    shibbershabber
    Vancouver
    Bronze Supporter Bronze Supporter

    Messages:
    2,924
    Likes Received:
    1,378
    Hey all

    I just put together a 9mm AR carbine and am wondering what the ideal zero would be.

    16" bbl, using an optic with a 4 moa dot.

    Ive read 25m is ideal... anyone have actual experience?
     
    bbbass likes this.
  2. Reno911

    Reno911
    Hillsboro
    Well-Known Member 2015 Volunteer 2016 Volunteer 2017 Volunteer 2018 Volunteer

    Messages:
    4,660
    Likes Received:
    9,173
    50 yards is what I use for my PCCs.
     
    bbbass, Certaindeaf and jordanka16 like this.
  3. jordanka16

    jordanka16
    Albany, OR
    Silver Supporter Silver Supporter

    Messages:
    1,620
    Likes Received:
    1,445
    I use 50 yards as well, 25 is too short, they have more range than you might think.
     
    bbbass and Certaindeaf like this.
  4. Certaindeaf

    Certaindeaf
    SE Portland
    Bronze Supporter Bronze Supporter

    Messages:
    13,451
    Likes Received:
    24,634
    Think of it as a more powerful .22.. kinda the same trajectory so 50 yards is about right.
     
    robertg likes this.
  5. Reno911

    Reno911
    Hillsboro
    Well-Known Member 2015 Volunteer 2016 Volunteer 2017 Volunteer 2018 Volunteer

    Messages:
    4,660
    Likes Received:
    9,173
    I’ve chrono’d my 16” 9mm. It get about 1250ish at muzzle with 115 factory ball rounds. Anywhere from .5” to 1.25” of drop at 50 yards. Roughly 10” drop at 100 yards.

    If your looking for a straight line zero. IE no drop. I’d say 30 yards is about right for a flat trajectory.

    I still recommend 50 yards though. You will be slightly high in close, but it isn’t much if your optic is mounted high from the bore.
     
    bbbass likes this.
  6. MrMillspecer

    MrMillspecer
    Scappoose
    Well-Known Member

    Messages:
    1,705
    Likes Received:
    4,688
    25 yards is good to get going , adjusting buis and reddot . You should know how where they hit at close range like 10 yards as well. But , I always go to 50 and many times the vertical is super close or the same as 25 but i can fine tune the windage. I would like to try 100 yards just to see holdover or clicks up on the pc9.
     
    bbbass and Alexx1401 like this.
  7. shibbershabber

    shibbershabber
    Vancouver
    Bronze Supporter Bronze Supporter

    Messages:
    2,924
    Likes Received:
    1,378
    Sounds good.

    All I ever hope to do is ring a 10" plate at 50-100....... now I just need time to actually get out and hang some targets:(

    20181008_131421.jpg
     
    bbbass, jordanka16 and Reno911 like this.
  8. jordanka16

    jordanka16
    Albany, OR
    Silver Supporter Silver Supporter

    Messages:
    1,620
    Likes Received:
    1,445
    Should be able to do that easy, I break clays with mine at 50 yards. Next time I go to the range I'm going to try 200.
     
    bbbass likes this.
  9. BWH

    BWH
    Tualatin, Oregon
    Active Member

    Messages:
    239
    Likes Received:
    230
    I zeroed my pcc at 40 yds on paper at home, it breaks clays dead on at 100. .....and its a hipoint. just sayin'
    it is like a hi powered 22. dot sight will never have the finese of good cross hairs. As long as I can clang steel, all is good
     
  10. 308

    308
    SW Idaho
    Platinum Supporter Platinum Supporter

    Messages:
    6,388
    Likes Received:
    18,729
    The Colt manual says to zero at
    25 meters
     
  11. Dyjital

    Dyjital
    Albany, Ore
    Flavorite Member Bronze Supporter

    Messages:
    7,193
    Likes Received:
    12,093
    50.
     

Share This Page