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parallax

  • 14-04-2013 9:03pm
    #1
    sniperman
    Registered Users, Registered Users 2 Posts: 2,035 ✭✭✭


    hi all,parallax,i know what it is,question is,how do i avoid it?ill be shooting a .17hmr with a leupold 4-12x40 AO scope,so do i need to worry about parallax within the range of the hmr,say from 30-150+yards?thanks all:confused:


Comments

  • #2
    Cass
    Moderators, Sports Moderators Posts: 28,697 Mod ✭✭✭✭Cass


    If you set the scope up correctly, and eliminate the parallax, then within the range of the rifle it won't be a problem.
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  • #3
    Vegeta
    Registered Users, Registered Users 2 Posts: 11,393 ✭✭✭✭Vegeta


    sniperman wrote: »
    how do i avoid it?

    Using the AO and keeping your eye optically centered in the scope.
    so do i need to worry about parallax within the range of the hmr,say from 30-150+yards?

    If you focus the objective lense at 90 yards (mid way between 30 and 150) you'll have an error of around 1/2 an inch at the extremes of 30 and 150 yards. Up to you if it's worth adjusting the objective to remove that error.


  • #4
    sniperman
    Registered Users, Registered Users 2 Posts: 2,035 ✭✭✭sniperman


    Cass wrote: »
    If you set the scope up correctly, and eliminate the parallax, then within the range of the rifle it won't be a problem.
    what do you mean set up the scope correctly.and eliminate the parallax?


  • #5
    Cass
    Moderators, Sports Moderators Posts: 28,697 Mod ✭✭✭✭Cass


    Many people mount the scope, and zero. Paying little to no attention to parallax.

    So assuming the scope is not pre-set with 100 yard parallax you need to eliminate it when setting up. If you are looking through the scope, and the crosshairs move (in relation to the static target) when you move your head/eye then the parallax is not set correctly.

    If the scope has AO or side parallax adjustment then keep adjusting and moving your head while looking through the scope until the crosshairs do not move when you move your head. When this is done the parallax is perfectly set.
    Forum Charter - Useful Information - Photo thread: Hardware - Ranges by County - Hunting Laws/Important threads - Upcoming Events - RFDs by County

    If you see a problem post use the report post function. Click on the three dots on the post, select "FLAG" & let a Moderator deal with it.

    Moderators - Cass otmmyboy2 , CatMod - Shamboc , Admins - Beasty , mickeroo



  • #6
    bravestar
    Registered Users, Registered Users 2 Posts: 1,082 ✭✭✭bravestar


    Cass wrote: »
    Many people mount the scope, and zero. Paying little to no attention to parallax.

    So assuming the scope is not pre-set with 100 yard parallax you need to eliminate it when setting up. If you are looking through the scope, and the crosshairs move (in relation to the static target) when you move your head/eye then the parallax is not set correctly.

    If the scope has AO or side parallax adjustment then keep adjusting and moving your head while looking through the scope until the crosshairs do not move when you move your head. When this is done the parallax is perfectly set.

    What Cass said, but just make sure that when you are doing your little nods behind the scope that your chin, cheek, arm etc do not move the rifle in the slightest way. If they do, you will have a very frustrating time with trying to remove parallax. I learned this the hard way :D

    Im just going to throw this out there as well since your asking about parallax so sorry if im insulting your intelligence. Make sure to properly adjust your scopes diopter for your eye first so that the reticle is instantly in focus when you look at it.


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