So I have started trying to roll my own ammo, and so far i have resized the necks on about 20 rounds of 30-06. Everything is going great, except on the down stroke it gets stuck on the neck expander(I think thats what it is). I can force it past, but its really quite hard and Im pretty sure its not normal. Do I put some lube on it to help it past? whats going on here?