I'm trying to compile components for an upcoming 280ai build. My goals are to shoot 168 grn bullets consistently well out to 600 yards. Anyway, I want to have all my components together before the upcoming presidential election, before everyone panic-buys everything they can. I was finally able to find a brick of Fed 215, but I was hoping to get some 215M. My question: Will there be enough of a difference in standard divination and extreme spread with the 215 over the 215m to worry about at 600 yards? This will be a big game hunting rifle primarily. Thx!