If indeed ADI2209 is H4350 (I think so), according to my cross-reference chart my data shows 67.0gr. as mid way between Lee's starting load with a 180gr. at 65.0gr. at 2,770fps and their listed maximum of 69.0gr. at 2,999fps at 62,577PSI.

This data is from the Second edition of Richard Lee's manual - everyone should have it on their loading manual shelf. They are not expensive ($22.00 CDN) but have much more data than most other handbooks.