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What is a "Ladder Test"?

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  #8  
Unread 08-27-2005, 09:13 AM
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Join Date: Aug 2005
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Re: What is a \"Ladder Test\"?

Abinok,

Would you please try

gsspatterning@mstar2.net

Big Al
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  •   #9  
    Unread 08-28-2005, 03:32 AM
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    Re: What is a \"Ladder Test\"?

    Abinok,
    I would appreciate a copy as well.
    Thanks,
    Gerard
    gerard@wol.co.za
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      #10  
    Unread 08-29-2005, 08:53 PM
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    Re: What is a \"Ladder Test\"?

    Gssp, I tried the alternate address you sent. Let me know if you get it. if not, ill try something else.

    Gerard,
    email sent.
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      #11  
    Unread 08-31-2005, 11:36 AM
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    Re: What is a \"Ladder Test\"?

    Abinok,

    Would you please send me a copy also?

    Thanks
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      #12  
    Unread 08-31-2005, 11:08 PM
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    Re: What is a \"Ladder Test\"?

    [ QUOTE ]
    <font color="purple"> I've got a document that does a passable job of explaining the ladder test. If you would like a copy, id be happy to email it to you. </font>

    [/ QUOTE ]

    Why don't you just send it to me, I'll scan/OCR it, put it on my web site, and we can all edit/update/improve it. No postage. Sorta the 80's way of doing it in lieu of the pony express. We can save the environment that way and keep all the liberals happy [img]/ubbthreads/images/graemlins/smile.gif[/img]
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      #13  
    Unread 09-01-2005, 02:03 PM
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    Re: What is a \"Ladder Test\"?

    Let me know if and when you get it up. I have a couple ladder tests I have shot and have no definative clue as to which load is the "best".

    Thanks
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    Stephen
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      #14  
    Unread 09-03-2005, 07:57 PM
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    Join Date: Dec 2001
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    Re: What is a \"Ladder Test\"?

    I pick a bullet, touch the rifling, pick a powder, Find a max load in a book subtract 4 grains, load three shells, add .5 grain, load one shell, add .5 load another etc. until I have 10 total. Just before dark when the winds calm down I set up a spotting scope and two targets at 300 or 400 yards.

    Fire the first two as sighters, this fouls bore and dial scope to last shot. Fire the 8 remaining shots, from least to most powder, at the other target marking down on a target at the bench the order in which they went in. If you get pressure signs stop. Read the clumps, they should tell you what the rifle likes for speed with that combo. If you don't get a clump try a different powder. If they are just starting to "come in" at the highest load I will continue up a bit more. Here is an example:



    Notice it liked slow and then the last 2 rounds started going out. I picked load 5. Then I do four or five shot groups doing variations off this base, adjust seat depth, swapping to regular primers, changing neck tension, at 100yd. If one is showing improvement, I do another ladder with .3 grain increments, half above and half below my first crude node pick. In this case I'll go out to 400 as the whole ladder is just over 1 moa. [img]/ubbthreads/images/graemlins/grin.gif[/img]

    Works good. Good luck.
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