I have never shot "magnum" loads out of any of my rifles. The deer I hunt are small in comparrision to most of the country. A 140lb deer is a very big deer where I hunt. That being said: most of my loads are in the 80-110 grain range. My Genesis' sweet spot is100grns.That being said, ifit shot better at 80 then I'd shoot that because I don't feel the need to shoot a magnum charge.A second reason is because I never shoot over 75 yards. The woods I hunt are so thick you most of the time can't see more than 40 or 50yrds so I don't need to worry about ft lbs at 200yrds. Roundballs out of my hawkin and K. Rifle are pushed by 80 grns. I generally get pass throughs on all my deer even w/the 80grns and a PRB. Why increase it?

I know guys that swear by the 150 charge but its overkill at least where we hunt.