I'm trying to find an accurate load for my AR, and I thought I'd try IMR 4064 and Hornady's 68 gr BTHP. I've heard good things about both. However, I can't find load data for this powder and bullet. When I went to IMR's site they did have start and max load for a 69 gr sierra BTHP, I believe max was 24 grains. So, anyone see a problem with me loading this bullet with 23.0 grains of 4064?