Welcome guest, is this your first visit? Create Account now to join.
  • Login:

Welcome to the NZ Hunting and Shooting Forums.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Black Watch DPT


User Tag List

+ Reply to Thread
Page 1 of 4 1234 LastLast
Results 1 to 15 of 48
Like Tree12Likes

Thread: 25m zero

  1. #1
    Member deepsouthaussie's Avatar
    Join Date
    Jun 2013
    Location
    Invercargill
    Posts
    1,260

    25m zero

    Literally just zeroed in at 25m into the coal bunker with my m77 .270 using federal 150 grain powershock after putting on a new scope and suppressor. Ive got nowhere further to test it today. Is it possible to find out the expected bullet trajectoy at say upto 200? Being zero at 25, Where would it be zero again? I realise theres a huge range of variables but lets just say perfect conditions and the ammo performs the way it says it should..

    Sent from my GT-I9300T using Tapatalk

  2. #2
    Sending it Gibo's Avatar
    Join Date
    Feb 2013
    Location
    The Hill
    Posts
    21,049
    Look up ballistics calculator in google and have a play. Not sure if yhey go down to a zero that close?

  3. #3
    Sending it Gibo's Avatar
    Join Date
    Feb 2013
    Location
    The Hill
    Posts
    21,049
    Ps dont relly on it if you find anything, practise at the range you want to shoot to and everywhere in between
    deepsouthaussie likes this.

  4. #4
    Gone But Not Forgotten Toby's Avatar
    Join Date
    Sep 2012
    Location
    Wouldn't you like to know
    Posts
    11,099
    Whats the velocity and bc of the bullet I can get it off my phone with that imformation.
    VIVA LA HOWA

  5. #5
    OPCz Rushy's Avatar
    Join Date
    Jun 2012
    Location
    Nor West of Auckland on the true right of the Kaipara River
    Posts
    29,117
    Down load Remington Shoot. It will tell you.. I am going to guess somewhere between 240 and 300. Would call it at 265
    It takes 43 muscle's to frown and 17 to smile, but only 3 for proper trigger pull.
    What more do we need? If we are above ground and breathing the rest is up to us!
    Rule 1: Treat every firearm as loaded
    Rule 2: Always point firearms in a safe direction
    Rule 3: Load a firearm only when ready to fire
    Rule 4: Identify your target beyond all doubt
    Rule 5: Check your firing zone
    Rule 6: Store firearms and ammunition safely
    Rule 7: Avoid alcohol and drugs when handling firearms

  6. #6
    OPCz Rushy's Avatar
    Join Date
    Jun 2012
    Location
    Nor West of Auckland on the true right of the Kaipara River
    Posts
    29,117
    Nope just just checked using Remington 150 grain PSP and the answer was 223
    It takes 43 muscle's to frown and 17 to smile, but only 3 for proper trigger pull.
    What more do we need? If we are above ground and breathing the rest is up to us!
    Rule 1: Treat every firearm as loaded
    Rule 2: Always point firearms in a safe direction
    Rule 3: Load a firearm only when ready to fire
    Rule 4: Identify your target beyond all doubt
    Rule 5: Check your firing zone
    Rule 6: Store firearms and ammunition safely
    Rule 7: Avoid alcohol and drugs when handling firearms

  7. #7
    Gone But Not Forgotten Toby's Avatar
    Join Date
    Sep 2012
    Location
    Wouldn't you like to know
    Posts
    11,099
    Quote Originally Posted by Rushy View Post
    Down load Remington Shoot. It will tell you.. I am going to guess somewhere between 240 and 300. Would call it at 265
    with the rough numbers I'd imagine them to be it was around 265m Rushy so top job
    VIVA LA HOWA

  8. #8
    Member kimjon's Avatar
    Join Date
    Apr 2012
    Location
    Waikato
    Posts
    1,633
    Not the best practice, much better to zero as far away as you can then the errors at close range will be negligible. If you zero at close range the errors at longer ranges can be substantial.

    e.g if you're only a fraction out like half an inch at 25m, I doubt you'd even know you were out, but that little error equates to 2'' out at 100y, and 4'' out at 200y ....and if you shoot out to 500y then that would be a complete miss or a gut shot.

    kj
    Neckshot likes this.

  9. #9
    OPCz Rushy's Avatar
    Join Date
    Jun 2012
    Location
    Nor West of Auckland on the true right of the Kaipara River
    Posts
    29,117
    Quote Originally Posted by Toby View Post
    with the rough numbers I'd imagine them to be it was around 265m Rushy so top job
    Just a machine Toby.
    It takes 43 muscle's to frown and 17 to smile, but only 3 for proper trigger pull.
    What more do we need? If we are above ground and breathing the rest is up to us!
    Rule 1: Treat every firearm as loaded
    Rule 2: Always point firearms in a safe direction
    Rule 3: Load a firearm only when ready to fire
    Rule 4: Identify your target beyond all doubt
    Rule 5: Check your firing zone
    Rule 6: Store firearms and ammunition safely
    Rule 7: Avoid alcohol and drugs when handling firearms

  10. #10
    Member deepsouthaussie's Avatar
    Join Date
    Jun 2013
    Location
    Invercargill
    Posts
    1,260
    Quote Originally Posted by kimjon View Post
    Not the best practice, much better to zero as far away as you can then the errors at close range will be negligible. If you zero at close range the errors at longer ranges can be substantial.

    e.g if you're only a fraction out like half an inch at 25m, I doubt you'd even know you were out, but that little error equates to 2'' out at 100y, and 4'' out at 200y ....and if you shoot out to 500y then that would be a complete miss or a gut shot.

    kj
    I do intend to zero it at 100 but I was just lining things up the best I could at home. We dont have a range down here that I know of unfortunately. Will have to wait till im in the wops.

    Sent from my GT-I9300T using Tapatalk

  11. #11
    Member deepsouthaussie's Avatar
    Join Date
    Jun 2013
    Location
    Invercargill
    Posts
    1,260
    Quote Originally Posted by Toby View Post
    Whats the velocity and bc of the bullet I can get it off my phone with that imformation.
    Thanks mate got it sussed.

    Sent from my GT-I9300T using Tapatalk

  12. #12
    Member
    Join Date
    Jul 2013
    Location
    Godzone, South Island
    Posts
    689
    I always use to sight my rifles @ 100, was told thats the way you gotta do it. But lately i have been zeroing at 25, and I mean exactly zero, and then checking at 100 or 200. And surprise surprise the last 3 rifles have taken me either 7 or 8 rounds to get it right - 2 at 25 and then a 5 shot group at 100 to check zero and group. And all have been exactly where I want them, either 2.5 or 3.5" high depending on calibre and speed. So yes it is possible to get it right at 25, but definitely check it at 100 or 200 as soon as you have the opportunity.
    JoshC and deepsouthaussie like this.

  13. #13
    ebf
    ebf is offline
    The gnome returns ! ebf's Avatar
    Join Date
    Jun 2012
    Location
    Hutt Valley
    Posts
    5,428
    On a slightly different tack, does anyone know of a ballistics calc or website where your starting point is something like 2 inches high at 100, and then get trajectory info ? I guess you could call it an offset...
    kiwi39 likes this.
    Viva la Howa ! R.I.P. Toby
    Black rifles matter...

  14. #14
    OCD Gravity Test Specialist kiwi39's Avatar
    Join Date
    Oct 2012
    Location
    Kapiti, Wellington
    Posts
    1,807
    Quote Originally Posted by ebf View Post
    On a slightly different tack, does anyone know of a ballistics calc or website where your starting point is something like 2 inches high at 100, and then get trajectory info ? I guess you could call it an offset...
    Yeah, I want that too ...

  15. #15
    Member
    Join Date
    Dec 2011
    Location
    Perth
    Posts
    1,117
    Try the Hornady ballistic table.

 

 

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Welcome to NZ Hunting and Shooting Forums! We see you're new here, or arn't logged in. Create an account, and Login for full access including our FREE BUY and SELL section Register NOW!!