Normally the game kings will stabilize in a nine. I believe they are actually a bit shorter than the 130 vld's; are they not? Keep in mind, it is the length of the bullet and, to a certain extent, it's shape which will determine whether or not it will work in a given twist. Sometimes, Sierra boattails just don't shoot well in rifles with a long, tapered throat such as that which is standard on 6.5x55's. GD
