Is it safe to use a de-primed primer again? They are new but the brass was pulled so I need to resize. I cant take the de-capping pin out of the Lee die i'm using.
That sucks. If you back out the primer slowly, you can re-use them. You can get any other FL sizer with the decapping pin taken out and not remove the primer and still size while keeping the primer seated.
I have used a Lee COLLET die to neck size primed-brass (LC brass with crimped-in primers for AR target shooting). I modified the neck mandrel by grinding off the decapping pin--you can get spares from Lee.