I did not call. I’m dropping back to 220-225 gr.I had a Remy 700P in 308 with a 1-12 twist and I was able to hit out to 1K yds with a 175SMK. I'm surmising that the 1-12 stabilized the pill enough to get me out to 1K. I suspect that 1-9 would be better but give it a shot with what you got.
Curious, did you call Hodgdon powder folks? if so what did they say. I've got a 300NM that would probably like a 250gr pill.