Centering Piece in 4 Jaw.
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  1. #1
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    Finally got around to recutting the recoil lugs and cleaning the threads on a Rem Sportsman 78 action I am going to make into a 280AI. Everything went well but it took a long time (about and hour) to get the action dialed in to less the .001" runout in my 4 Jaw chuck.

    Are there some tricks to quickly setting up and dialing an action in in a 4 Jaw chuck?

    Thanks
    Jeff in ND


  2. #2
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    Oct 2001
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    Practice my frend, practice. This is how I do them. http://www.gtrtooling.com/prod05.htm

    [This message has been edited by Kurt Westfall (edited 02-19-2003).]

  3. #3
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    Damn that is a great idea. I wish I had thought of it.
    Fred T

  4. #4
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    try not to use the dial untill near true.Just
    freely spin the chuck by hand and look at the top for the high spot adjust untill close.You can measure to the top of each jaw if you like .Then you get the high point under a jaw (low under the oposite jaw) by lightly adjusting the other 2 .
    Then put on the dial and adjust untill you
    are closer to true but still keep the high point by centre of 1 jaw.
    I dont know if I have explained this ok but please ask if you dont understand.
    It only should take minutes if done right.

  5. #5
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    titusville fl. usa
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    if your chuck doesnt have reference rings machined into the face of the chuck remove all jaws and insert a v type tool and plunge .010" to .020" deep into the face on 1" pitch. after machining install jaws and use reference lines to assist in set up. if possible always work jaws in pairs 1~3 then 2~4 then use indicator for final zeroing. usally takes 5 to 10 min tops to indicate using this method try it youll like it...jim
    ps my grandson just came and got me to see the pigeon which was actually a red tail hawk.
    this is unusal since i live in the middle of town but we watched it for 5 mins until it got tired what a great way to start a sunday


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