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Reloading Berger Bullets

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preventing run-out

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  #1  
Unread 02-04-2009, 10:24 PM
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preventing run-out

Hey guys got a question for yall what is the best way to prevent bullet runout. IF it matters, i am curious becouse i am getting a 338 edge and ive heard that problem is kinda common. Any advice would be greatly appreciated.

Thanks
Nathan
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  •   #2  
    Unread 02-04-2009, 10:46 PM
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    Re: preventing run-out

    I use redding "S" bushing type competition dies. And good brass really helps too. But I think with the 300 Rum brass, there will be a limited choice. Someone that has necked it up before will be more help on that.

    Jeff
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      #3  
    Unread 02-05-2009, 12:22 PM
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    Re: preventing run-out

    this subject has been covered abundantly and with good info. Try a search.
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      #4  
    Unread 02-05-2009, 12:34 PM
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    Re: preventing run-out

    Once you get your neck runout under control,seat you bullet a little bit at a time.I will seat the bullet aprox. 1/4 of the way,turn the case 1/4 turn,seat a little further,give the case another 1/4 turn,do this until the bullet is fully seated.This method cut my bullet runout in half.
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      #5  
    Unread 02-05-2009, 08:55 PM
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    Re: preventing run-out

    Thanks KQguy and everyone else as well i appreciate it

    Nathan
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      #6  
    Unread 02-07-2009, 11:05 PM
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    Re: preventing run-out

    You will have to expand the neck up to 338. So run it over a 338 mandrel then run it into a type S bushing die. If not using a bushing die, expand with the expander ball then run the case back through with the expander ball and decapping rod removed. I did this with 7 RM brass and runnout went from .006- .007 to .000-. 002.

    On the seating and turning method, experiment with it. With my 7 RM I got less runout than sizing and turning. With a 308 turning worked better.

    260
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