Wow that case is full !

Discussion in 'Big Stuff--7mm, 30 Cal, .338+' started by JMayo, Mar 31, 2020.

  1. JMayo

    JMayo

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    I'm loading my first 30br. 4198 @ 33.8.
    Maybe an 8th to the top.
    Crushing that powder !
    Compared to the 6bra bt 105's that'll stick in and stay there while I put the seater over it the 30br is a pita to hold, don't spill & set seater over it.
    My fingers do not work well because of a accident years ago.
    It would be easier on the press no doubt. Oh well, like I have the time to get all 200 done for fire forming.
     
  2. bcarico

    bcarico Silver $$ Contributor

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    If you are using a Wilson set the die over the case and drop the bullet in from the top through the stem hole, replace the top then seat the bullet.
     
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  3. R.Morehouse

    R.Morehouse Gold $$ Contributor

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    If what your saying is that your bullet is sitting on top of the powder before starting to seat it, I would suggest trying a 6" drop tube and a slow pour into the case. I do this with my ppc's and it buys me some room compared to just dumping it in....

    Regards
    Rick
     
  4. 243winxb

    243winxb

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  5. Lefty Trigger

    Lefty Trigger Gold $$ Contributor

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    What 243winxb said, faster powder will require a little less of it reducing the amount in the case. I may be old school but I never load anything compressed.
     
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  6. gunsandgunsmithing

    gunsandgunsmithing The best tuners and wind flags on the market Gold $$ Contributor

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    Just slow down the pour. You should have plenty of room for 33.8 in there. Pour in down the side of the funnel and let it kinda swirl into the case.
     
  7. wkdickinson

    wkdickinson Gold $$ Contributor

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    It often helps to use a funnel with a long (6") drop tube. Tends to "stack" grains more tightly.
     
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  8. jimmymac

    jimmymac Gold $$ Contributor

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    As previously said, drop tubes are your friend. You should have no problem with the charge you chose without being compressed.
     
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  9. jimmymac

    jimmymac Gold $$ Contributor

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    I routinely run 34.5 to 34.7 of 4198 without being compressed.
     
  10. jimmymac

    jimmymac Gold $$ Contributor

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    Here is a 10” tube and funnel from Benchrite. It works great.

    96791D8F-DC4B-4D51-851C-3FD5E0A4F10A.jpeg
     
  11. Ned Ludd

    Ned Ludd Gold $$ Contributor

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    Now we know what triggered the earthquake in Boise. ;)
     
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  12. rayporter

    rayporter Silver $$ Contributor

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    pour slow and completely stop pouring 3 times to let it settle.
     
  13. gunsandgunsmithing

    gunsandgunsmithing The best tuners and wind flags on the market Gold $$ Contributor

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    Stupid question probably...Are you using Hodgdon H4198 or the old IMR stuff?

    I surprised you're having ANY trouble at all with H4198..so, I'm just asking.
     
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  14. sqrlgtr

    sqrlgtr Silver $$ Contributor

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    I'm with jimmymac no problems with those charge wieghts being compressed,close to it but no compression.
     
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  15. gravelyctry

    gravelyctry Gold $$ Contributor

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    I use a battery powered toothbrush without the head on it. I put my finger on top of the case and touch the toothbrushes shaft to the case. The vibration settles the powder quickly.
     
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  16. geo.ulrich

    geo.ulrich beware of owner Gold $$ Contributor

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    I believe he is fire forming , cases are not blown out yet ....
     
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  17. JEFFPPC

    JEFFPPC Silver $$ Contributor

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    If you all would read what Randy Robinett has written on the 30 BR he recommends powder crush for the best accuracy. It's on this forum. SURPRISE
     
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  18. jimmymac

    jimmymac Gold $$ Contributor

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    Got a link on that whole powder crush thing? I found this one that discusses "slightly compressed" and agree.

    http://forum.accurateshooter.com/threads/30br-seating.3986092/#post-37567835

    IMO, there is a lot of difference between slightly compressed and crush. The former is easy to deal with. The latter can be a pain in the butt as you jump through hoops trying to make sure you have enough neck tension so the bullets don't back out. I've had to remove shims from my seater die to achieve my normal seating depth with heavily compressed charges. Then I had to double check them at the range to verify they didn't move. No thanks.

    The trick (at least for me) is to have a good assortment of drop tubes in different lengths to achieve a case fill that results in the base of the bullet kissing the top of the powder column, or a slight compression as discussed in the link above. For any given charge, you will get a different amount of case fill based upon the drop tube you select. A 4" tube may yield a case fill even with the top of the neck, while a 8" tube may provide a case fill that is half way down the neck. Same charge, different fill with bullet seating being easy or hard to deal with. Take your pick.

    I'm a hack, so take the above for what it's worth.
     
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  19. johara1

    johara1

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    hole diameter in the drop tube means a lot also, I even made delrin connectors to combine drop tubes to add length..... LOL.....jim
     
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  20. JEFFPPC

    JEFFPPC Silver $$ Contributor

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    I agree Jimmymac. There is a limit. I have always shot upper node with the PPC and there can be too much of a good thing. When you open your shell box and no two rounds beside each other look alike......well I have been there. Not a good feeling. What was interesting to me was all the comments from what the OP brought up agreeing but then words of wisdom just the opposite from Mr Robinette. Often we need to do a little research, myself included, before we assume.
     

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