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Thread: Weighing Brass

  1. #1

    Weighing Brass

    I have just taken delivery of some new brass, I usually use Lapua or Norma, but for this caliber I can only get Remmington brass.

    I feel the need to sort this brass weight wise........ What is the best way of doing this ?

    Full resize trim to length and weigh ?

    Weigh straight out of the bag ?


    Cheers

    Sticks

  2. #2
    never done this but if i had to then i would full length trim etc and do all the necessaries like chamfer / primer pockets etc then weigh

  3. #3
    +1 with loiner.. F/L resize, while your on i would measure them all, find the shortest case and trim to that length then weigh.

  4. #4
    fully prep then weigh

  5. #5
    The old Hodgdons #26 has an interesting article on case weights and just how it improved the grouping in the authors rifles.

  6. #6
    Quote Originally Posted by Sticks View Post
    I have just taken delivery of some new brass, I usually use Lapua or Norma, but for this caliber I can only get Remmington brass.

    I feel the need to sort this brass weight wise........ What is the best way of doing this ?

    Full resize trim to length and weigh ?

    Weigh straight out of the bag ?


    Cheers

    Sticks
    Why not weigh Lapua and Norma as well?? If you must weigh any brass, all of the above is correct.~Muir

  7. #7
    I've never weighed a case yet , be it once fired new or used. All I do is fully re-size and trim to factory length and use them !

    That's what works for me , and I've used remmington , federal , norma and lapua and all may loads are with in. 50fps sso I wouldn't bother if I were you !

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  8. #8
    If you do weigh them, what sort of weight differences would be expected?

    Andrew

  9. #9
    In that article in the Hodgdon #26 he says this:-

    As a rule, very small cases (.22 Hornet, .222 rem and the like) should be culled to eliminate variations exceeding .5 percent (.005). Standard cases (22-250 rem to 30-06 Government) should vary no more than +/- 1 percent (0.1) and magnum cases are segregated to eliminate those deviating more than 1.5 percent (0.15) from average.

  10. #10
    Quote Originally Posted by Sticks View Post
    I have just taken delivery of some new brass, I usually use Lapua or Norma, but for this caliber I can only get Remmington brass.

    I feel the need to sort this brass weight wise........ What is the best way of doing this ?

    Full resize trim to length and weigh ?

    Weigh straight out of the bag ?


    Cheers

    Sticks
    As these are new cases what's the point in full length resizing or even trimming them . It won't make a jot of difference........ and how would you tell anyway? OK - a few of the necks won't be circular, but these can be sorted out by a light touch with the neck expander ball.

    You've paid the price for new shiny brass rather than once-fired, so take advantage of this convenience for the first firing. You're only working the brass unnecessarily - plenty of time to do this later on. You could fireform on the first firing, and then neck-size them thereafter until full-length sizing or trimming is needed. Maybe they'll last forever - what a hope.

    I do weigh brass after sizing as a routine as I've got about 20 different makes, and it's useful to see which makes are the most consistent - Min. to Max. What's maybe more important is segregating them by brand from lightest to heaviest if you're using full-power loads. Even the small cases such as .223 can vary in weight from one brand to another by 10% so internal capacity must vary in the same way........ Que? This doubt bugs me a bit, so I usually develop loads in the heaviest brand of case (such as RWS) to give myself a bit of elbow room when moving on to the lighter brands of cases.
    If I'm going to be accused of it then it's just as well I did it.

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