6BRA brass life

Discussion in '6BR, 6BR Improved & Wildcats' started by pat fulghum, Oct 5, 2019.

  1. pat fulghum

    pat fulghum ( ͡° ͜ʖ ͡°) Gold $$ Contributor

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    I decided to section some 6BRA brass (lapua) that has 26 reloads and has treated me very well in mid range f class.

    I did this just to check for any signs of failure.

    Take a look at photo.

    The brass is full length sized but the sizer just kisses it on the body and .001 shoulder bump.

    I think it will still last for a while.

    75C9DFCA-C25A-4993-A435-71C48A75B4DE.jpeg
     
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  2. 22DASHER

    22DASHER Gold $$ Contributor

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    Damn near forever is one way to put it.
     
  3. foxguy

    foxguy Gold $$ Contributor

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    Looking really good for 25+ firings.
     
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  4. pat fulghum

    pat fulghum ( ͡° ͜ʖ ͡°) Gold $$ Contributor

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    I had 3 different IMs asking how often I annealed them.

    I do have a very nice annealer, but I don't anneal my 6BRAI brass.... this is my thinking...

    I only bump .001
    I run with .0015 clearance in the neck.
    I seat with only .0005 neck tension.

    So the brass sees very little movement, and the load is not very "hot".

    Also, this set of 100 pieces started out in early 2017, they have been "sorted" on the firing line by any unexplained flyer results in the brass getting retired to the weeds. ;)
    There are only 82 (now 81) pieces left from that batch of 100.
    -pat

    p.s. I have started to apply this high tech sorting theory to 284 brass with some success in controlling my ES.
     
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  5. urbanrifleman

    urbanrifleman Site $$ Sponsor

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    No donut. What kind of sizer?
     
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  6. Link

    Link Silver $$ Contributor

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    How about loose primer pockets :{ Mine got loose after about 5 firings.
     
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  7. pat fulghum

    pat fulghum ( ͡° ͜ʖ ͡°) Gold $$ Contributor

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    No donut
    Pockets still hold primer fine. Not as tight as new, but no leakage
     
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  8. urbanrifleman

    urbanrifleman Site $$ Sponsor

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    Bushing die?
     
  9. dmoran

    dmoran Donovan Moran Silver $$ Contributor

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    Chamber match up to the original brass specializations, and die match up to both, are huge determining factors.
    And of course, how hard we hit em'.

    Have 6Dasher's that are at +50 firings, but also have destroyed primer pockets in less then 5 firings.
    A lot of variables play into brass life.
     
  10. pat fulghum

    pat fulghum ( ͡° ͜ʖ ͡°) Gold $$ Contributor

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    My die is a custom Whidden FL bushing die made from twice fired brass...the first firing was sized with a Harrell dasher die.

    My 6bra reamer is very close to wheeler spec, but not exact.
     
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  11. johara1

    johara1

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    These results are not uncommon with Lapua, that have been annealed every time and have 100+ firings...... jim
     
  12. urbanrifleman

    urbanrifleman Site $$ Sponsor

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    How many pieces do you reload 100 times?
     
  13. johara1

    johara1

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    depends, I use to do 2-300, now I don't shoot as much and a 100 will do me plus the old ones for testing.... they don't wear out, unless you destroy them.... jim
     
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  14. johara1

    johara1

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    I found loose primers pockets in new brass. I do nothing to them till after I fire form and some are very easy to seat and they sure never get tighter ..... jim
     
  15. urbanrifleman

    urbanrifleman Site $$ Sponsor

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    How long does it take you to shoot 10000 rounds?
     
  16. JMayo

    JMayo

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    Benchrest only.

    I also have 6bra brass that has 20 + firings. I use varget at 30.6.

    I bought 200 new after my first yr thinking I'd need to. The first 200 I started using for sighters, did get harder and spring back became a real problem. Id have to adjust die up and down, measuring constantly.
    I had them annealed and they came back good as the new.
    I've probably tossed 3 for pockets, 3 for me dinging case mouth and a few for testers on my annealer.
    My newest have 8-10 firings.

    I think those that have loose pockets on their brass could be grinding out the pockets cleaning them. It doesn't take much to knock out the rims. I watch for brass particles. Ease up, get the crudd not the brass.
    (I don't uniform the pockets)
     
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  17. johara1

    johara1

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    Didn't take long years ago, I really don't count bullets easier to count the barrels I go throughout I shot the same cases for over 7 years as a Dasher and even sold the cases and for all I know they are still going, now I'm into the 6br imp. and I just changed neck thickness and will have to make new brass. .... BTW. I shoot almost every day, my range is 40 ft away.... jim
     
    Last edited: Oct 7, 2019
  18. JMayo

    JMayo

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    I shoot an easy 2k a year so that is 5 yrs worth of shooting for me !

    I smile thinking I won't have to buy brass for 5 yrs ! :)
     
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  19. johara1

    johara1

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    If you don't abuse them and your die and chamber are close and you don't over work them and you anneal you are good to go. Never lost a case for loose primer pockets or split necks after they were forumed I did have one that split in the body half way up the side from a flaw...... most were lost from hitting the concrete or dinging the case mouth in the press...... jim
     
  20. dmoran

    dmoran Donovan Moran Silver $$ Contributor

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    ^^^^ agree with Jim, except one aspect .... you don't have to anneal .... some do, some don't
     
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