Cant help with your 180 grain bullet but 45ish years ago I used to load 174 grain rn Hornady to 2250/2300 fps with 36grains of 3031. The chrono I built at the time was an oscillator and had to shoot through 2 wires(1 to start and 1 to stop the oscillator)and was fairly accurate. Primers showed highish pressure and case life was about 3 loadings. Neck sized only with CAC brass. These days I only shoot 220 grain cast and that's at the range.
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