Tuesday, October 9, 2018

How To Zero A Rifle Scope

How To Zero A Rifle Scope

You've just got yourself a new rifle scope, fitted it and let me guess...for some reason your shots are landing nowhere near the crosshairs?

Sadly there's more to rifle scope sharp shooting than just plonking the scope on the rifle and forever after shooting like an SAS sniper! You have to "zero" it.

Think about it. It's like a bike wheel. If you tighten the bolts wrong, too much on one side for example, it spins wrong and rubs the brake pads. It's the same with a Rifle scope. If it's not set up correctly it will be offline and even at short air rifle, airsoft and paintball ranges this is going to throw your accuracy right off. At longer ranges you'll miss by a mile (well figuratively anyway!)

What Does "Zero a scope" mean?

Zeroing a sight or scope means getting the crosshair in position so that when you shoot. Ground zero if you like. The point of impact.There's a lot of discussion amongst shooters on the best way to zero a scope or sight. What I've written below is what I've been sending out to my eBay scope buyers for the last year or so and received a lot of good comments back about it so I know it's OK!

How to Zero a Rifle Scope

First of all you need to set a firm foundation by fitting the scope mounts well.


  1. Put the scope mounts on the rifle first with the top brackets removed.

  2. Tighten them into place using 1/2 turns at the time so that they sit solid and level as best as is possible, i.e., the downward pressure is as equal as possible. At this stage don't tighten them fully as you might want to slide them up and down a little.

  3. Now take scope and place it on top of the open rifle mounts.
    • Make sure the windage and elevation turrets are one up and one to the right (these are the "turrets" on the sight. You use them later to make micro adjustments and in the field adjustments for wind)


  4. Then put the top mount brackets on and tighten - Again use partial turns to tighten up.
    • Don't tighten fully at this stage, you may yet need to adjust a little.


Zero the scope

  1. Lie in your normal shooting position and check that you can see through the scope well...

    • The distance between your eye and the rear scope lens is called Eye Relief.

    • Unlike cartoons you do not use a scope by pressing your eye up against the scope lens!



  2. Once comfortable complete the screwing down of all mounts so that your set up is solid -
    • take care at this stage to keep the final turns partial and one by one to ensure pressure is equal.


  3. Now it's time to zero the scope for shooting:


    1. Load the rifle

    2. Adopt your standard prone/lie down shooting position.
      • Prone is the best way as if you test shoot from standing or kneeling positions you waver more and it's harder to do a "true test".


    3. Put some sort of target in place at say 20 yards - or whatever you think your "standard" range will be.

    4. Using cross hair on target centre - Take 2-3 shots - Where do do they fall in relation to where you want them to? Right, left, up, down - dead on (lucky you!)

    • 2-3 shots is best as it will average out shooter inaccuracy and give you a more "significant" feel for how far or close you are from true zero.

    Now it's time to use the windage and elevation turrets to get it zeroed dead on. These are the 2 turrets on the top and right side of the scope. See my website for pictures.


    1. Models vary, you'll probably screw a cap off and expose either a coin twist or finger knurled type of dial.

    2. The top turret adjusts up and down. The right one left and right.

    3. If you have your scopes instructions they should have a table with figures to tell you what each click adjustment means in terms of cross hair movement at "x" distance, e.g., 1/8 inch at 100 metres.

    Use single click turns and each time take a new shot to gauge where the shot now falls - the dials basically adjust the cross hair position up-down and left-right.

    It's trial and error basically but with testing you'll get to where you need to be and be able to trust that your shots will go where it says they will! This may take some time and a lot of shots. Be patient!


    • The Faucet Handle is Hard to Turn - Repairing a Single Handle FaucetThe Faucet Handle is Hard to Turn - Repairing a Single Handle Faucet It often happens to me as a plumber. After I repair a faucet and the homeowner turns the faucet lever for the first time they are amazed. "The faucet turns so…
    • How to Compare Auto Insurance Quotes and Get the Most for Your MoneyHow to Compare Auto Insurance Quotes and Get the Most for Your Money If you want to be successful in finding cheap auto insurance, the best way is on the Internet, of course, not by phone or crossing the street to go into an office. As soon as…
    • Completely Free Personal Finance Online - Organizing Personal Finances For Building WealthCompletely Free Personal Finance Online - Organizing Personal Finances For Building Wealth If you want completely free personal finance online help, you are sufficient as organizing personal finances for wealth building has never been easier…
    • Benefits of Forex Robot Trading SystemsBenefits of Forex Robot Trading Systems Forex trading can be difficult if you are a layman. It involves fundamental and technical analysis to come up to the right conclusion. Proper understanding of news trading is also required. Most of the…
    • Popular Auto Insurance CompaniesPopular Auto Insurance Companies The American auto insurance sector is characterized by the presence of a large number of players. Some are large general insurance companies that have diversified into auto insurance and some are pure play auto…