So I am gettting a new rifle and it has a 1-10 twist. Will this work for 105-107grain lead? If not what would a 1-10 shoot well on average? I see a ton of custom guns with from 1-7, 1-8 twist barrels and obviously they work very well. So why doesnt rem, win, tikka, weatherby, browning, or howa use this twist in over the counter rifles? The offer between 1-9 1/8, to 1-12 so I am confused on why the disparity between otc and custom?