Donut on Neck of 25-06 AI

[Aim4gold]

I have fireformed my cases for 25-06 AI
Now I am prepping for loads
Neck sizing with a redding bushing die I am getting donuts on the lower neck near the junction with the shoulder. What am I doing wrong? Is this a problem?
The donut is sudel, but it's there.

[trappst]

What you're seeing is probably not an actual donut or at least not one to be worried about. Redding bushing dies are made in such a way that they won't size the entire neck. There's always just a little bit that's not sized....that's what you're seeing.

Load 'em up and shoot 'em. After firing, see if a bullet will freely drop into the case through the neck. If it does, you're good to go. You can also use the old bent paper clip to check the neck/shoulder junction.

[Aim4gold]

Thanx