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Reloading Berger Bullets

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Reloading scale

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  #1  
Unread 10-04-2013, 03:42 PM
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Reloading scale

Reloading for 300 win. I will get a great group one day, the next I will get a couple bad flyers. I weighed 3 loads twice. Found 2 loads were .20 grns heavy and 1 was .20 light. .40 grn difference. Is that enough to make a big difference in speed and accuracy?
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  •   #2  
    Unread 10-04-2013, 04:45 PM
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    Re: Reloading scale

    My 2C is that it depends on how far out you are shooting, and how bad your flyers are. If you are seeing 1-2" flyers at 100 or 200 yards, I would not expect that to be caused by slight changes in powder charges. It is more likely scope, bedding, or shooter related (I have a 300WSM that I found out threw flyers due to #3, please don't think I'm saying you can't shoot - I'm just sharing personal experience)
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      #3  
    Unread 10-04-2013, 06:00 PM
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    Re: Reloading scale

    No offense taken. Looking for answers. Thanx.
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      #4  
    Unread 10-04-2013, 06:28 PM
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    Re: Reloading scale

    IMO as well....

    When I'm being really critical about charges, I weigh each and every one with my beam scale (I have an inherent distrust for electronic scales, no matter what brand).

    Bulk loading, I weigh every tenth charge. Now, I use a culver type charging station instead of the normal varible capacity like RCBS or Lee or Hornady sells. A Culver charging station throws inherently more accurate charges but costs substantially more and on the plus side, a Culver unit is unaffected by powder shape. Normal displacement type charging stations do fine with spherical powder but not so good with extruded rod powders. Culver measures don't care about powder extruded shape, they throw consistent charges no matter what.

    Finally a slight powder variation shouldn't cause serious accuracy issues, Factory rounds vary a bit. Pull some and weigh them sometime and compare.
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      #5  
    Unread 10-04-2013, 07:01 PM
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    Re: Reloading scale

    Quote:
    Originally Posted by Crp63 View Post
    No offense taken. Looking for answers. Thanx.
    What is your rifle/optics set-up, and what do your flyers look like?
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      #6  
    Unread 10-10-2013, 09:09 PM
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    Re: Reloading scale

    Even 1 grain makes a difference. ..
    I use and trust rcbs 10-10 scale.. no batteries needed, just in case **** hits the fan, no power around no worries

    Last edited by Freedom2live; 10-10-2013 at 09:39 PM. Reason: mixed another scale
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      #7  
    Unread 10-10-2013, 09:22 PM
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    Re: Reloading scale

    I have found that sometimes small deviations in powder will make a difference and sometimes not. Usually it won't matter if using large capacity case and slow burning propellant. I weigh each charge on my RCBS 10-10 balance beam scale when loading rifle cartridges. I tried another brand BB scale once and it was not consistent at all, so I returned it and got a refund. If I weigh each one down to a gnat's ass I don't have to worry about that causing inconsistency in my loads. That eliminates one possibility if components don't make a good mix.
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