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barrel torque

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  #8  
Unread 04-04-2010, 01:35 PM
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Re: barrel torque

Well said Chad.

Fitch
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  •   #9  
    Unread 04-05-2010, 06:20 AM
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    Re: barrel torque

    Chad, I'll add two more cents, for a total of 4 cents worth of advice. I was referring to score shooting BR as well as group shooting BR. As you well know, retaining your zero, in a score match, is critical if you wish to punch out that tiny dot 25 times. Would I suggest using an action wrench and a barrel vise everytime? Yes, but not always absolutely needed.
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      #10  
    Unread 04-07-2010, 05:03 PM
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    Re: barrel torque

    Interesting thread which relates a little to something I've been thinking about... namely putting together a switch barrel rilfe... and I wanted to be able to set the barrels with 1 or 2 set screws. Hand twist them on to a preindexed point and then set the set screws. The screws would screw into/through the reciever into a nothched portion of the barrels thread, which would index it to the same point everytime you swapped it on.

    Bad or good idea, and why?

    -Mark
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      #11  
    Unread 04-07-2010, 05:17 PM
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    Re: barrel torque

    125, 150 ft. lbs. or torque...damn that's alot. I've rebuilt a few motors in my day and usually torqued head bolts to 60. But then again motors and guns are...well to steal a phrase from Chad...like apples and oranges. Just curious how are you able to apply that kinda force...afterall it's not like you can slap a socket or a big wrench to the barrel...so how's it done?
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      #12  
    Unread 04-07-2010, 05:36 PM
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    Re: barrel torque

    Quote:
    Originally Posted by Chas1 View Post
    125, 150 ft. lbs. or torque...damn that's alot. I've rebuilt a few motors in my day and usually torqued head bolts to 60. But then again motors and guns are...well to steal a phrase from Chad...like apples and oranges. Just curious how are you able to apply that kinda force...afterall it's not like you can slap a socket or a big wrench to the barrel...so how's it done?
    It takes a barrel vice and a action wrench.

    As I said I don't use but 50 to 70 ft/lbs because I dont wan't to load the threads any more
    than nessary to keep it from working loose and letting the 60,000 PSI do the rest on the
    threads.

    I have torqued to well over 100 ft/lbs and found no advantage in accuracy .

    I have owned 2 rifles that started shooting poorly and discovered that the barrel was only
    hand tight. (They were torqued @ 30 ft/lbs) so I up the torque to 70 ft/lbs and solved the problem. (On actions with small tenons I drop the torque down a bit.

    Everyone has there own idea of what torque is nessary and I don't think it makes that
    much difference It's just a matter of choice.

    J E CUSTOM
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