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raptor calls

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Posts posted by raptor calls

  14. My DIY annealing machine!

    in Handloading

    Posted

    Oh I forgot I've not ordered mine yet as there is a kind gentleman on here thats offered to do mine .

    As long as you are not annealing in the oven......

     

    At last you`ve shown some signs of evolution. For a moment I thought Darwin got it all wrong :o

     

    Please, don`t take offence as I'm only joking urged by your avatar ;)

  19. My DIY annealing machine!

    in Handloading

    Posted

    AMP really is a good machine, but all these programs are a bit of a marketing trick.

     

    See, they have different programs for different makes, but even the same companies make cases with brass of different proportions of zinc and copper. They also vary in neck thickness.

     

    The AMP relies on these proportions and neck thickness standards to calculate the exact time, but as I mentioned the variables are to many from batch to batch and that is why these programs are just useless!

     

    Please, read this article that proves what I say: http://bulletin.accurateshooter.com/2011/09/cartridge-brass-alloys-revealed-by-x-ray-spectrometers/

     

    revealed that the alloy in the new ‘blue box’ 6mmBR Lapua brass is different than the alloy in Lapua’s older ‘brown box’ 6mmBR brass. Specifically, the ‘blue box’ 6mmBR brass has more copper and less tin (by mass). Here’s a summary of the X-Ray Fluorescence spectrometry tests:

     

     

    Do you believe the AMP has a program that says Lapua cases from the newer blue box and Lapua cases from the older brown box?

     

     

    Regards,

     

    Lubo

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