Thanks Kirk for the imput, I have loads of imr 4350 and 4831sc, and i was wandering if it would have enough case capacity for that slow of powder Im always playing with powders in several of my guns so that I dont get hung out to dry on another powder shortage scare
No problem. I got a bit more speed with 7828, but it was very sensitive to temperature. I'm in southern Manitoba and shoot anywhere from -30C to plus 20C. I find that H1000 works with these huge temperature swings. I use it in my 300 RUM and 300 WM as well. Mudrunner has had good luck with the 7828 in his 25-06 AI. Maybe he will see this. It is kind of weird. What MUD has found is the exact opposite as what I found with H1000.
It has been so long since I load developed that I don't remember what I started at. The AI is a different animal. So my load will differ from yours. Have only shot mine out to 700 yds as I feel that is about all the energy I would feel safe shooting a deer. Even 700 yds is pushing it a bit. Drops deer real good out to 500 yds.