How to sight in a rifle at 200 yards on a 100 yard range

So I scouted for deer season this year and I found a good spot by a field that essentially might make me take a shot up to 200 yards. However all of the ranges by home only go up to 100 yards. Usually I use iron sights but I don't want to take a shot that far without a scope.

For reference I use a Springfield M1A in .308 and just got a Bushnell ET5154 scope that has Mil dots on it. Otherwise I'll have to drive really far to sight it in at that exact distance and practice essentially. Any tips or advice will be greatly appreciated.

I know everyone hates the m1a and it's super impractical for hunting but I love the damn thing too much lol

  1. 2 months ago
    Anonymous

    25yd reference.

  2. 2 months ago
    Anonymous

    What's wrong with the ol Arkansas elevation?

  3. 2 months ago
    Anonymous

    Sight it in at 100. You said you MIGHT take a shot UP TO 200. Know your holdover. Or, stop being a fucking fudd and shoot 5.56 so your POA is within minute-of-heart from 100 to 300

    • 2 months ago
      Anonymous

      >stop being a fucking fudd and shoot 5.56
      OP is talking about hunting deer, not LARPing as a soldier.

      • 2 months ago
        Anonymous

        Soldiers will soon be using 6.8 anon, 5.56 is a fudd round.

        • 2 months ago
          Anonymous

          And it still won't fucking matter because civilian firearms won't adopt that caliber in significant numbers for several years

        • 2 months ago
          Anonymous

          BACK IN MY DAY WE CARRIED 5.56 IN THE SANDBOX, NOW THAT WAS A REAL ROUND WITH SUM HYDROSTATIK SHOCK, NOT LIKE YOUR NEW FANGLED 6.8.
          Sent via Tapatalk

      • 2 months ago
        Anonymous

        >not LARPing as a soldier.
        As I said, minute-of heart out to 300 with a 100 zero. Or use something else flat-shooting, is using .243 LARPing as a soldier?

      • 2 months ago
        Anonymous

        i kill deer every year to great effect with .223. the wounds produced by 62 and 70 grain TSX are gruesome

    • 2 months ago
      Anonymous

      East of the Mississippi 100 yards is a fine zero. I mean I am a good shot, but I prefer shots 100yards or less. I want a humane kill, it's the only acceptable option, really. God made us the stewards of his creation, and I take that responsibility seriously.

    • 2 months ago
      Anonymous

      223 Remington is great for shooting dog, fox and the tinniest of roe deer.
      For everything else i stick with boomer cartridges

  4. 2 months ago
    Anonymous

    Get a ballistic calculator app and familiarize yourself with the concept of max point blank range.

  5. 2 months ago
    Anonymous

    If your scope has mildots learn to use them.

  6. 2 months ago
    Anonymous

    Your manual should have zeroing instructions.
    https://www.bushnell.com/bu-manuals.html

  7. 2 months ago
    Anonymous

    Look at this gay getting attached to inanimate objects. Have you ever seen anything more sad and pathetic? What, Do you have a blankie too? Maybe a bib with the picture of a M1A on it to help keep baby food from dribbling on your onesee? Your mother should be beat within an inch of her life for raising such a weak gay like you.

    • 2 months ago
      Anonymous

      I own 15 guns, nothing about attachment I just love the damn thing and I don't see myself buying a bolt action whatever and shooting it often outside of deer season.

      What's wrong with the ol Arkansas elevation?

      Lol because I actually might get a shot at a good buck this year and I'm not squirell hunting

      Sight it in at 100. You said you MIGHT take a shot UP TO 200. Know your holdover. Or, stop being a fucking fudd and shoot 5.56 so your POA is within minute-of-heart from 100 to 300

      Fuds don't use M1As. Most fudds would agree I'm a dumbass for using an m1a for deer hunting. Using .223 for deer hunting is literally retarded.

      If your scope has mildots learn to use them.

      I'm watching all of the videos now lol based off what I'm reading it looks like I better make sure I have hunting rounds with as close to the same ballistics as my plinking rounds. Unfortunately I mostly PPU cheap ass ammo at the moment and only a few boxes of fiochi

      • 2 months ago
        Anonymous

        >Scope on M1A
        >Deer hunting at exactly 200 yards
        >Not zeroing with the exact rounds you will use on hunting day
        >Has 19 guns but doesn't know what a holdover is or what max point blank range is

        I don't like you

        • 2 months ago
          Anonymous

          First of all, most of them are old WW2 guns that I collect and shoot, all irons. And I was on the shooting team in college but it was the pistol team. I can count on two hands how many times I've shot a rifle with a scope in the past 10 years so I'm just learning how to do it all properly now

    • 2 months ago
      Anonymous

      What the fuck?

  8. 2 months ago
    Anonymous

    >How to sight in a rifle at 200 yards on a 100 yard range
    Basic math bro. Look at the ballistics chart for your rounds, either published by the ammo maker or use an online calculator. Once you have the chart just subtract to find the difference in elevation between 100 and 200 yards, and zero at that distance above 100 at the 100 yard range.

  9. 2 months ago
    Anonymous

    Have the rifle shoot 1.5 inches high at 100.
    Voila, you now have a hold out to roughly 250.

  10. 2 months ago
    Anonymous

    Most rifle calibers suitable for deer don't see major falloff until after 300 yards. I use .30-06 180 grain loads and they don't show any real drop until past 250

  11. 2 months ago
    Anonymous

    Most hunting ammo has a drop / velocity chart on it.

  12. 2 months ago
    Anonymous

    zero at 100 and put two clicks up assuming that shit rifle has the same adjustment as an M1. doesn't your elevation drum have marks for zero, 200, 300 yds etc.

    • 2 months ago
      Anonymous

      M1's drum is in yards, m14 is meters.

  13. 2 months ago
    Anonymous

    >Take off the scope and mount,
    >Replace sights with NM sights
    >Zero at 100 yards
    >Use ammo traveling at 2,800 ft/s
    >crank dat hoe to 200 yards when needed

    All of this is useless unless you can judge range. At the end of the day it's 200 yards and a 100 yard zero will be fine. just put your deer feeder 100 yards exact from your stand. I shoot a LRB M14SA and plan on using the NM iron sights for deer season. Practice with them and you will be surprised. For example, last session a shot a three shot group of 0.21X MOA which is not representation of the rifle just dumb luck but it shows that iron sights are still very effective. Honestly if you have the eyes for it I would mount an Aimpoint Pro with the SEI M21 mount.

  14. 2 months ago
    Anonymous

    While s cross between redneck and fuddlore, depending on the cartridge, dead on at 100 yds means aim around an inch and a half high at 200..you're not going to thread any needles, but you'll do fine hitting deer in the vitals

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