I have adjusted my collett die the way Lee says. And then moved the die up and down . and I am not getting very much tension to hold the bullett. My 30'06 will hold a bullett but not really snug. M 25'06 will not hold at all. I thought ABinok wrote once about different mandrels or collets but I can't recall. Jerry Teo wrote about 4-5 thousands tension to hold the bullet during recoil but I am not getting this. Have a great Christmas and great New Year. Shawn