If you can find it, H380 from Hodgdon. ( or its ADI equivalent)The story is that 38 grain of that powder behind a 55 grain in a 22-250 was producing exceptional accuracy, hence 38.0 aka 380.
If you can find it, H380 from Hodgdon. ( or its ADI equivalent)The story is that 38 grain of that powder behind a 55 grain in a 22-250 was producing exceptional accuracy, hence 38.0 aka 380.
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