"Extreme" powder from IMR

skyfish

November 12, 2009 09:11

I see IMR has a new powder coming out, 8208 XBR, that will not be affected by temp. I believe someone on this sight said it was only a matter of time.

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  Rocky Raab

  November 12, 2009 09:17

  8208 has actually been around for quite a while, but never as a canister powder until now. It was and is highly prized by benchrest shooters, who got their hands on it as a fairly small lot of surplus powder. It is SO well thought of that IMR decided to bring it out.
  
  So-called "temperature insensitivity" is more marketing blather than anything of real value. Even those that claim such a benefit don't claim it for all cartridges, all loads or under all conditions. It doesn't even work both ways: hot to cold and cold to hot.

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  JustC

  November 12, 2009 10:15

  Hogden made the extreme powders,..then they purchased IMR,..so it was only a matter of time before IMR had extreme powders as well.
  
  They are not "unaffected" by temp changes,.they are affected to a "lesser degree"

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