.280 Ack. Powders Vs. 30-06 Powders

Discussion in 'Reloading' started by Jcub, Nov 24, 2013.

  1. Jcub

    Jcub Well-Known Member

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    Why is it I rarely, if ever run across published loads used for 30-06 using Retumbo, H-1000 or other similarly slow burning powders like I do for the .280 Ackley? Yet they are the virtually the same case?
     
  2. cowboy

    cowboy Well-Known Member

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    Good question. I've been wondering the very same thing. Don't want to hijack this thread but has anyone played with Retumbo in a 30-06. ?????
     

  3. Jcub

    Jcub Well-Known Member

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    Anyone?
     
  4. Jcub

    Jcub Well-Known Member

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    Bueler.
     
  5. Derek M.

    Derek M. Well-Known Member

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    Because those slower burning powders are not as effective in the .06 case in most instances. But, Reloder 22 is a very good powder in the .06 with 180 and heavier gr bullets.
     
  6. Lefty7mmstw

    Lefty7mmstw Well-Known Member

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    Bingo!! we have a winner!!

    You can't put enough load (bullet weight) on some slow burning powders to get them to full pressure in a not so overbore round like the '06; it's all case capacity to bore diameter (with bullet weight thrown in). rl22 will make a 180 haul in an '06, and is probably the slowest powder I'd use in it.
     
  7. Jcub

    Jcub Well-Known Member

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    But the .280 Ack IS the '06 case, with 4 more grains of powder. So you're saying that those 4 extra grains are the difference between Retumbo working or not?
     
  8. Edd

    Edd Well-Known Member

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    The difference is the size of the hole in the barrel.

    A 350 Chevy engine with a 12:1 compression ratio has a different requirement for fuel than a 350 Chevy engine with an 8:1 compression ratio.
     
  9. Derek M.

    Derek M. Well-Known Member

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    It only takes SLIGHT differences in rifle calibers all using the same parent case to make a substantial difference. Here's a parallel: take your water hose and put the older spin on cap on it and tighten it down making the hole smaller. What happens? The same water spits out faster and flatter.

    Take your question in the opposite direction. Compare the 30.06 and the 338-06. By your questioning, shouldn't H1000, and Retumbo work optimally in it? The answer is no, in fact, the powder burn rates get faster again.
     
  10. Jcub

    Jcub Well-Known Member

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    Makes complete sense when you put it that way. Thank you Gentleman.