I'm having a bizarre issue. Lee collet dies, 25-06, Lee press. It doesn't matter if I use winchester or remington brass but about 1 in every 20 or so loads thru the decapper and neck sizer the neck doesn't get sized down enough. Of course I don't recognize this until I put the bullet in the brass and it just falls thru. In a 90 round batch tonight I had 7 that did this. I ended up popping out the primer and resizing (without readjusting the die) and then they work fine. Any ideas?