I am going to try a new bullet in my 270. the 150g SST. Anybody know the estimate BC of this bullet?? My rifle seems to like the sierra and hornady bullets better and I like plastic tipped bullets for various reasons. I figured this might be a great 800 yard deer bullet. My 270 is shooting 150g gamekings right now at 2950-3000fps with either h4831sc or rl-22, both at 57.5g. They are max loads for this rifle. I was going to start at 56.5g with both powders and go up in .3g increment till I get to 57.5g. Or wherever accuracy is best. Hoping for 2" 3 shot groups at 300 yards. Anybody shoot this bullet out of a 270?