It is my impression that most benchrest shooters at 100 and 200 yds go for flat-base bullets. For long range rifle shooting, such as at 600 yds, it will be all boat tails for obvious reasons. After three summers of experimenting with loads for my 22-250 varminter, I have found my best results with the 60 gr. Sierra HP varmint bullets. These are flat base, and are not even really target bullets at all. My shooting is at 100 and 200 yds, since the clubs I belong to do not have longer distances available. Groups with this bullet really shine. Am I the only one who thinks this? We are talking paper punching and small groups here. Hunting's an entirely different ball game.