I know this is an Old Post but I was looking for this exact information I have come to the conclusion that this Lee primer feed is a pain in the butt no matter how I adjust mine it will not put the primer in the pocket unless I use two fingers one pushing down on the top front edge and one pushing on the back if I use one finger the primer falls out and misses the pocket 100% of the time out of 25 tries 4 loaded in the pocket 21 went on the floor that is a joke. I have adjusted the small pocket for the primer to sit in up and down both directions make no difference it's like the primer feed hits the rim not letting it go in far enough to place the primer in the pocket because it touches 100% of the time I have to push fairly hard or harder than you should have to push and way harder than I see every video on YouTube on how to use it to get the primer to fall in that pocket