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308imr

  1. K

    Load development powder start?

    Hi I am planning on developing a load for my 20", 11/1, 308 with Berger 185 juggernaut, vv n550, cci 250, lapua brass. I want maximum safe velocity and my question is: Do I really have to start at the minimum powder amount in the load manual to be safe? It is about 41grains and to me it seems...
  2. Grump

    .308--IMR 4895 vs. IMR 4064?

    4895 is the "classic" powder, but there's apparently a small/large? minority getting great results with 4064. Other than 4064 has longer granules (=metering woes), what differences have y'all seen between the powders? Anyone have data points on velocity changes with temperature changes for...