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need help with 7mm belted cases

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  #8  
Unread 08-09-2011, 07:41 PM
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Re: need help with 7mm belted cases

I have always setup my RCBS belted cases with a nickle ontop of the holder and then screw down the die until it touches. This sizes the case nicely and leaves the bottom portion to have a better fit in that rifle.
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  •   #9  
    Unread 08-10-2011, 11:32 AM
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    Re: need help with 7mm belted cases

    Could someone explain in fine detail what this "donut" approach actually. I thought from past threads, you don't want a donut?

    Thanks all.
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      #10  
    Unread 08-10-2011, 10:53 PM
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    Re: need help with 7mm belted cases

    Thanx alot for your advise guys. That's why I like this site . You guys aren't all about yourselves and actually help a guy learn. Sure do appreciate it.
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      #11  
    Unread 08-10-2011, 11:14 PM
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    Re: need help with 7mm belted cases

    Quote:
    Originally Posted by 338winmag View Post
    Could someone explain in fine detail what this "donut" approach actually. I thought from past threads, you don't want a donut?

    Thanks all.

    What I call the donut is the last part of the neck against the shoulder that has "Not" been sized
    and remains the size of the neck chamber after fire forming.

    In other words If the neck is .300 thousandths long you would size only .280 to .290 and leave
    10 to 20 thousandths UN sized .

    What this does is to assure that the neck is centered to the bore after sizing when chambered.

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      #12  
    Unread 08-13-2011, 07:09 PM
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    Re: need help with 7mm belted cases

    Quote:
    Originally Posted by jimbires View Post
    resize these belted cases just like any other case . just set your resizing die up to push the shoulder back .002 or .003 . I've never seen the need for the innovative belted case die shown in the one post above . Jim
    Exactly.
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      #13  
    Unread 08-13-2011, 09:19 PM
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    Re: need help with 7mm belted cases

    Bommtube said it like it should be done. belted cases are not as hard as we make them. Head space of the sholder or belt. My 7 mag likes me to adjust the die to the shell holder and 1/8 turn out. the die is a lee FL sizer and works just fine.
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      #14  
    Unread 08-16-2011, 10:52 AM
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    Re: need help with 7mm belted cases

    In my rifle I have to full length resize otherwise it will not go back into the chamber. Something to check first.

    Corey
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