Maybe a stupid question about zeroing in a rifle

Discussion in 'General Rifle Discussion' started by TheNYResistance, Oct 5, 2013.

  1. TheNYResistance

    TheNYResistance New Member

    65
    0
    0
    F I were to zero it in at a 100 yard range and saw a deer at 200 yards would I need to adjust for the increased distance? Or is it basically set for all ranges? I'm sure I would have to compensate some and shoot a little higher than what I'm aiming at to compensate for the drop, but I should be good all around, no?
     
  2. mountainman13

    mountainman13 New Member

    11,525
    0
    0
    Depends on the caliber to a degree, but for the most part, yes you compensate by aiming a bit higher.
    If you know the ballistics you can calculate it out.
     

  3. MisterMcCool

    MisterMcCool New Member

    12,805
    0
    0
    Look at the ballistics for your caliber.
     
  4. mountainman13

    mountainman13 New Member

    11,525
    0
    0
    Ha. Beat you by seconds. Lol
     
  5. Rick1967

    Rick1967 Active Member

    4,972
    0
    36
    I like to Zero at 200. Then you are a couple inches high at 100. But if you zero at 100 you are more than a couple inches low at 200. Zeroed at 100 can be close to a foot low at 300 depending on the caliber. I find 200 a good compromise.
     
  6. primer1

    primer1 New Member

    9,704
    0
    0
    +1

    Roughly 2 high at 100, 8 low at 300, 18-24 at 400 for most centerfire rounds, depending on caliber . Op, are you shooting centerfire, muzzleloader, shotgun slugs?
     
  7. MisterMcCool

    MisterMcCool New Member

    12,805
    0
    0
    Story of my life. :(
     
  8. c3shooter

    c3shooter Administrator Staff Member

    To the OP- when a bullet is fired, and the bore is tilted above the horizonatal, the bullet starts up, and crosses the line of sight. If you are zeroed dead on at 100 yds, then at 100, as it is coming down, it crosses line of sight again. Beyond 100, it continues to drop. You need to adjust the point of aim at greater distances.

    Give me the cartridge you are using, I can give you the data of where bullet will be at different ranges.

    Agree on the 200 yd zero for MOST high powered rifle loads.
     
  9. TheNYResistance

    TheNYResistance New Member

    65
    0
    0
    Thanks for all the helpful tips guys. I'm using a .30-06 savage axis.

    The best range I have by me is 100 yards, the first time I fired it was something like 50 feet at a crap range. The rifle was high and to the right at that range straight out of the box.

    Will try to find a better range to zero at 200.
     
  10. Rick1967

    Rick1967 Active Member

    4,972
    0
    36
    If all you have is a 100 yard range, just set your scope up to hit 2 inches high at 100. That is a good baseline to work with. Make sure you are dead center left to right. 1 inch to the left is 2 at 200 and 3 at 300 and so on.
     
  11. c3shooter

    c3shooter Administrator Staff Member

    Rick has some good advice. If you are shooting a 180 gr soft point 30-06, center of scope lens is 1.5 inches above the bore, and have a 50 yard range, adjust scope so that at 50 yds, bullet strikes 1 inch high. At 100 yds, will be 1.8 inches, at 150, 1.6 inches, and at 200, dead on.
     
  12. limbkiller

    limbkiller New Member

    1,514
    0
    0
    I sight my .270, .280, 30-06, 6.5x55, and .308 at 2 1/2" high at 100 yards. With the .270 and .280 I can hold dead on and kill deer out to 320 yards with no change on the hold on big game. Never more than 2 1/2" high or 4 " low. The others just a little less. 300 yards. Where I hunt my shots might be 25 yards in a thicket or 400 in a field. I use 130's in .270, 140 in .280 and 6.5x55, 150 in 30-06 and .308. The 30-30's I do sight in at 100 and a .243 I sight in at 200.
     
  13. CaseyChadwell

    CaseyChadwell New Member

    825
    0
    0
    Depending on the caliber and range you'll be shooting, like everyone has said. I usually use a 223 to deer hunt, so I zero for dead on at 100 because I won't shoot much further past that distance because of the caliber. When it comes to me using a 243, 7-08, or 25-06...I usually go an inch high at 100. The farthest shot I can get is 327 at any of my farms, so that gets me about where I need to be out that far...
     
  14. dlhvac

    dlhvac New Member

    38
    0
    0
    I thought it was magnums at 200 along with3006 and others at 100
     
  15. nitestalker

    nitestalker New Member

    6,495
    0
    0
    The bullet does not rise after leaving the muzzle. Gravity takes over and the path of the bullet is descending. Velocity, density etc can resist the decent at longer ranges depending on the caliber.

    The line of sight via the scope is a straight line. The path of the bullet is an arc. The path of the bullet in decent crosses the line of sight . The point where the bullet crosses the line of sight is your zero. Beyond zero the bullet path descends below the line of sight.

    You may extend a zero by sighting a flat shooting rifle 2" high at 100 yards developing a zero point at 250 yards. This will maintain a Point Blank of less than than 3 inches out to 250 yards. :)
     
  16. WhelanLad

    WhelanLad New Member

    124
    0
    0
    Keep in mind- If you are shooting only to 100m or so, 1 inch High at 100m is also a good one, really anywhere from 1-2inch is fine.

    All of mine fall inside of this.
     
  17. hairbear1

    hairbear1 New Member

    986
    0
    0
    I've got a 30/06AI using 165gn projectiles and I'm 1.6" high at 100yds which basically gives me a dead on hold out to around 300yds on pig sized animals up to deer sized animals.

    Can't see the sense of trying to bomb up a deer at or pig at 500yds and possibly wound it when I can try and crawl/sneak in closer to make sure of a certain kill at 100-200yds.

    If I really have to I at least know that I can have a crack at most game out to 400 with a bit of guesstimation sighted in at 1.6" high at 100yds.
     
  18. willshoum

    willshoum New Member

    5,433
    0
    0
    Sight in..................

    This reminds me of the joke about the Doctor, the lawyer and the statistition on a deer hunt..........................:eek::D
     
  19. DeltaF

    DeltaF New Member

    3,210
    0
    0
    If you practice at long range enough with your ammo this isn't an impractical shot.

    My father in law killed a deer at 476 yards last year. He was more worried about the terminal ballistics of the round at that range than hitting his target. So he shot it through the eye.
     
    Last edited: Oct 14, 2013