I have been successfully reloading for the .303 British since last summer. Everything has been going well and a buddy of mine gave me a free set of Collet dies for neck sizing. I had hoped that this will extend the life of my brass since I always shoot the brass in the same rifle and it is fire formed. I went through and used the neck sizer ( Lee Dies 90717)
It was awesome. Fast and easy. Now comes the issue. Boht my cast load and my Hornady commercial bulets are way too loose in the neck. Now I have two questions
1. What did I do wrong?
2. How can I fix the problem with 150 cases. (I know that i am stupid for doing them all at once!)