At present I only have full length size my .223 cases. I read somewhere that you can neck size with a FL die. Is it a case of push the case into the die a little bit and hope for the best or is it more technical than that.
For example an unsized fired case is 1.755 but after a "bit of a squeeze" in the press it was 1.762. At first there was no neck tension on the bullet so I had to apply a bit of pressure to size the neck.
Ooh just noticed it doesn't de-prime when I do that!
Any help much appreciated
When I FL resized the case and the primer popped out the case still measured 1.762. I assume all the sizing is being done before the primer is popped out.