WW 760 always worked the best for me in my RSI, but H414 is giving it a run for its money...
No surprise there since they are the same powder.
My .250 XP-100 liked W760 as well with 100s. Be sure of your twist rate, the old 1:14" twist didn't like 100s. Even my 1:12" Remington only shoots the flat-based 100s well.
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