I shoot the 230 OTM Tactical. I use it in three of my 30 cal rifles. It shoots within my ability to aim at every seating depth from 0.010" off the lands to 0.050" off in each of those rifles. You should be able to get real close or to 2,800fps safely from your 9 twist rig. It also functions very well on game, if that is a part of your consideration.
I spent some time with the 240SMK. I found it didn't shoot as well as I hoped it would in my 30 cal magnum and it did not function with any level reliability if used as a hunting bullet. It could be just what your rifle is looking for though, especially to punch steel or paper.