Next Test- 455gr SG, 310gr Lead Head, 325gr MM, 220gr 30Cal Nosler Partition - Page 14
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Thread: Next Test- 455gr SG, 310gr Lead Head, 325gr MM, 220gr 30Cal Nosler Partition



  1. #131
    Gun Wizard
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    Joe, you are not wrong. I can not say that I have been able to see the difference in my testing between the two, but I think your theory is well founded. The sooner the bullet expands the quicker it unleashes it's energy. To be honest, I have not tested this theory well enough to say it does not have merit. I suspect that bullets with more lead up front, than the bullet I tested with (225gr and 237gr Sage Country), might demonstrate a marked difference. Lowering the transition line from soft to hard, such that there is more soft alloy, may also alter outcomes.
    I did test annealed tip RD432-300 bullet on a couple of occasions and those bullets were never recovered. That was early on in my testing when heavy cast bullets were lost about 1/3 of the tests. My bullet retention in my current set up is almost 100%.
    My thinking ultimately goes along with the theory that if meplats expand to .75" to 1" before it shears off, it has already been effective in that phase of terminal performance. Then the rim shears off to allow bullet to continue to penetrate with a expanded frontal section of .47" to .55". The final bullet profile allows the bullet to penetrate considerably further. Of course, only so much penetration is needed in most hunting cases, so all that extra penetration is mostly academic, yet re-assuring.
    So, for myself, I have decided to choose my alloy hardness and otherwise, not make things too complicated.
    joe12180 and tdoyka like this.

  2. #132
    Deadeye
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    I don't cast. I've just now received my first batch of cast bullts from beartooth so I'm in all new territory.
    M700 likes this.

  3. 02-05-2014, 06:59 AM

    Gun Wizard


  4. #133
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    Beartooth makes a mighty fine bullet.


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