My 6.5 experience is that those long bullets look pretty, but with the 1 in 9 twist,the flat base bullets shoot more accurately. 6.5/284, 260 and 6.5x55, all shoot better with the flat base for 1 in 9 twist.
Just my experience, but I was wrong once
Good Luck
Just my experience, but I was wrong once
Good Luck
