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Reloading Berger Bullets

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708 urgent help

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  #8  
Unread 05-18-2012, 04:50 AM
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Location: clearfield county , Pa
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Re: 708 urgent help

gr1ffer , I did a fast look at quickload . the 140 accubond does not allow as much powder making it much slower than the Berger . I still think you should be able to get 2800 FPS . what is your barrel length ? and what is your COAL off the tip of your bullet . I'll run you a few numbers in quickload . from what I've checked in the past RL17 is usually higher velocity than varget or w760 in the 7-08 . Jim
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  •   #9  
    Unread 05-19-2012, 02:58 AM
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    Re: 708 urgent help

    Cheers for all the help I went back to the drawing board and tried a whole new bunch of components managed to get 2750 fps with 47 grains of h4350 which is a grain under max and exceptional accuracy did try a chrono test with elegy 22 subs and it seemed ok.
    Again many thanks having shot the rifle and this load to 300 yards I'd be happy to shoot a deer out to this range

    Kris
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      #10  
    Unread 05-19-2012, 07:43 AM
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    Re: 708 urgent help

    I'm loading up my daughters 7mm-08 with 49gr RL19 and CCI200's manual lists it over 2900fps, I haven't chronographed it but she sure had no problem taking her 2nd (very large muley) buck at 300
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      #11  
    Unread 05-19-2012, 05:13 PM
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    Re: 708 urgent help

    I also have trouble reaching 2800fps with 140 gr. Have currently 4 7mm08 all like different things sierra spt work well in all, accubonds shoot well out of my wifes rifle. nosler ballistic tips are hard to beat and cheaper than the accubonds to. IMR4064 good, reloader15good, I never had luck with h414 but a lot of others have. Try some other pills maybe you can find one that will allow you to get closer to the lands. but if what your doing is working other than not getting velocity you would just keep doing it. good like with the best caliber ever!!
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      #12  
    Unread 05-19-2012, 08:34 PM
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    Re: 708 urgent help

    With the 140s a snugly compressed load of H4350 with Fed210Ms or BR2 primers is your best bet, and should easily get 2800+ in a 22" or longer barrel.
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      #13  
    Unread 05-20-2012, 04:55 AM
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    Re: 708 urgent help

    Sorry for late reply
    My barrel is 23" 1-10 twist
    My col is 2.8 that puts me 0.08 off lands
    Rp brass h20 of fired case is 55 grains
    Cci br-2 primer

    Again thanks for all your help if I can't get RL-17 to work the H4350 is very accurate and close velocity wise I don't think any living creature will notice 50 fps at 300 yards
    But you do need to draw a line in the sand somewhere.

    Kris
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      #14  
    Unread 05-20-2012, 06:00 AM
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    Re: 708 urgent help

    I used your specs . 2.800 COAL , 55 gr H2O case capacity ( fired case ) , 23 inch bbl , 140 accubond , the 7-08 is rated to 60191 PMAX pressure .

    RL17 - 45.5 gr , 60102 pmax , 2913FPS , 100.6% case fill MAX LOAD
    45.6 gr , 60544 pmax , 2920FPS OVER MAX

    H4350 -46.7 gr , 59961 pmax , 2911fps ,108.9% case fill MAX LOAD
    46.8 gr , 60455 pmax , 2917FPS , OVER MAX

    H414 - 46.2 gr , 59956pmax , 2881fps , 100.6% case fill MAX LOAD
    46.3 gr , 60401 pmax , 2887 fps , OVER MAX

    varget - 42.3 gr , 60125pmax , 2826fps , 101.4% case fill MAX LOAD
    42.4 gr , 60560 pmax , 2832 fps , OVER MAX

    I think I covered all the powders that were mentioned . if you want to see a different powder let me know . general rule of thumb is to start 4.0 grains below max and work up while watching for pressure . hope this helps . Jim

    Last edited by jimbires; 05-20-2012 at 06:01 AM. Reason: spelling
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