IMR 4227 experience in 6br?

Discussion in 'Reloading Forum (All Calibers)' started by FryeGuy, Apr 23, 2019.

  1. FryeGuy


    Nov 5, 2005
    Does anyone have experience with this powder? I had a pound left over from when I used to own a 6.5 grendel in an AR platform. It was listed as one of the powders for a 6BR with lighter bullets in the Nosler manual. I tried some in my cooper 6br 14 twist. It is insanely accurate. tried 27.0 grains with a 55 blitzking bullet, and a 58 v-max. I was getting better groups with it than I was N133, varget, RL7 and any other powder I tried honestly. If anyone has tried it, what did you experience once temperatures went up? I have only tried this load in winter/spring months so far. I don't think it is one of the powders listed as temperature stable like varget and some of the others. What is others experience?

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