IMR numbers/powders

joes

September 24, 2007 16:53

Do the numbers on the IMR powders stand for anything? Is their a method behind the numbers and does it reflect the burn rates? thanks, joe.

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  HandgunHTR52

  September 24, 2007 17:06

  Here is a link to a good powder burn-rate chart.
  
  
  Warning: the site is one of those that has that annoying music that you cannot turn off. Make sure your volume is turned down.
  
  http://home.hiwaay.net/~stargate/powder/powder.htm
  
  FWIW, I believe that the higher the number, the slower the powder, but this not always the case.

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