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Type: Posts; User: ofitg

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  1. Replies
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    20,326

    I have read that the sulfur in BP becomes...

    I have read that the sulfur in BP becomes colloidal (ie, fluid) at "pucking" pressures and fills in voids between the charcoal and saltpeter particles, cementing them together.
  2. Replies
    316
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    20,326

    Thanks for the chrono data! Golden Powder...

    Thanks for the chrono data!

    Golden Powder might be comparable to Black Powder in rifles (still waiting for chrono reports), but it sounds like it could be too slow-burning for pistols. Perhaps...
  3. Replies
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    20,326

    It should be mentioned that nitrocellulose powder...

    It should be mentioned that nitrocellulose powder has an auto-ignition temperature (ie, "cook off" temperature) in the neighborhood of 300 degrees Fahrenheit (~ 150 degrees Celcius).

    Sandro's...
  4. Replies
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    20,326

    I will second that motion. Hopefully somebody...

    I will second that motion. Hopefully somebody will provide some chronograph data.
  5. Your initial batch of five rounds was...

    Your initial batch of five rounds was encouraging. As you experiment further, I imagine you will find improvements to the process (and the performance).
  6. Thanks for the update - very concise data. ...

    Thanks for the update - very concise data.


    EDIT - Instead of IMR-4320/Varget, my GRT simulator suggests that it might be a closer match to IMR-4350.
  7. I hope your velocities are superior to what I...

    I hope your velocities are superior to what I achieved. That could be a real boon to some people. If the Albert-Oelberg mixture generated a time/pressure curve capable of cycling a gas-operated...
  8. I have been "lucky" with KClO3 for 30 years (so...

    I have been "lucky" with KClO3 for 30 years (so far). Here is a test I posted (post #88) eight years ago -
    ...
  9. I would call attention to Section 3.7 of the...

    I would call attention to Section 3.7 of the manual – MATCH GUN – which uses match heads as propellant. People around the world have been using match heads as expedient “gunpowder” for decades,...
  10. Are you familiar with this document, TM 31-210 ?...

    Are you familiar with this document, TM 31-210 ? Do you think it is legitimate?
    ...
  11. Interesting stuff! Will you be chronographing...

    Interesting stuff! Will you be chronographing your test loads?
  12. Replies
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    30,658

    Here are illustrations from the...

    Here are illustrations from the aardvarkreloading.com website (dimensions in inches) -

    https://aardvarkreloading.com/resources/Homemade%20Primer%20Course%202021-06-01.pdf
    ...
  13. Replies
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    After you do it the first time, stirring...

    After you do it the first time, stirring manually, you will probably want to buy one of these hotplate/stirring machines 8-)
    ...
  14. Replies
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    It is difficult to find online documents which...

    It is difficult to find online documents which detail how primers were evolving more than 100 years ago. It is not clear to me exactly when FH42 superseded H48. Hatcher’s Notebook mentions that “some...
  15. Replies
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    Can you buy Lead Nitrate where you live? Can you...

    Can you buy Lead Nitrate where you live? Can you buy Calcium Hypophosphite (or Sodium Hypophosphite)? You would need those chemicals to make EPH20 or EPH25.

    The biggest difference between H48 and...
  16. Replies
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    Following up on Mustang's suggestion, there are...

    Following up on Mustang's suggestion, there are numerous sellers on eBay offering Stibnite crystals, and some of them are outside the United States (they ship internationally).
  17. Replies
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    Here's a report I posted (post # 129) when I...

    Here's a report I posted (post # 129) when I tried it - my apparatus/set-up was a bit different -
    ...
  18. Replies
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    If you have access to tin, and access to sulfur,...

    If you have access to tin, and access to sulfur, you might make Tin Sulfide, which can be substituted for Antimony Sulfide -

    https://www.youtube.com/watch?v=_n4lg0cAXv0

    You would need heat at...
  19. Replies
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    Here's a handy little compilation of primer...

    Here's a handy little compilation of primer compounds, including H48 and FH42 -

    https://www.northwestfirearms.com/threads/priming-mixtures.58110/
  20. Forum: Cast Boolits

    According to Hatcher’s Notebook, the U.S. began...

    According to Hatcher’s Notebook, the U.S. began using the FA-70 primer compound during WW1 because of misfires from the H-48 and FH-42 primers. The misfire problem was traced to excessive humidity...
  21. Forum: Cast Boolits

    Post #16 lists a mixture called P4-3...... Is it...

    Post #16 lists a mixture called P4-3...... Is it called P3 now?
  22. Thread: 223 or 300 BO

    by ofitg
    Replies
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    2,049

    I'm surprised that nobody has mentioned how easy...

    I'm surprised that nobody has mentioned how easy it is to form .300 AAC cases from .223 brass....
  23. Forum: Cast Boolits

    Mustang, thanks for posting! I have been waiting...

    Mustang, thanks for posting! I have been waiting for somebody to write up a review on those primer cup forming dies....

    Do you have any future plans to recycle Small Rifle/Pistol primers?
  24. Replies
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    I just use crushed sand. For making percussion...

    I just use crushed sand. For making percussion caps I have used sand as coarse as 40 mesh, but you would need smaller granulations for modern primers.
  25. Replies
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    According to that old U.S. Army spec, 100-150...

    According to that old U.S. Army spec, 100-150 mesh would probably be ideal, but you may have to settle for 200 mesh..... it should work fine for percussion caps, which are much more "forgiving" than...
Results 1 to 25 of 380
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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check