So I am about to shoot my 300rum for the first time. I wanted to build an edge but got a great deal on a 300rum barrel and figured I would give the 240smk a try. The only rum compliant powder I could scrounge up was US869. I have read everything here on the use of the two together but just want to make sure I am not missing something. I plan to start with 95gr of us869 and go up from there. It will be about 70 degreed here and from what I have read this should not be a problem until I start pushing it (which I probably won’t). I would like to see 2800 fps out of my 26” barrel single shot savage. I would like to be able to shoot this thing from 40 to 80 degrees. Am I starting in the right area? Any help would be appreciated.