T7, I have found that boat tails most times tend to not shoot as well as flat based out of a ML'er. AT least not out of either of mine. No clue as to why because probably 85% of my CF bullets are of a boat tail design and ALL of my longer range CF bullets are BT. Never could get a good group at 150 with any so far with them. Last ones I tried were the Barnes .451 290 grainers. They flew okay as far as grouping at around 6 inches at 150 for hunting but considering the flat based version grouped at just under an inch and a half,,,,, well nothing else needed on that front huh.