I was looking at some boxes of 6.5 140gr A MAX's last Saturday and saw that the box listed the 140gr's "for 1-7 twist only". Is this new? I have a 2 year old box that doesn't specify this and they shoot great in my rifle (8 twist). Did they change the bullet in some way to cause the 7 twist designation? I fought the urge to buy some until I could pose the question to the board. I think they should be fine, but I want to know for sure. Thanx. Dave.