Thread: Reloading issues: stuck decaping pin, stiff pull when resizing

The left case looks OK. The right case there's only one thing I can think of... You said the decapping pin was getting stuck. My guess is the expander ball was tight or no lube inside the neck, and as you with drew the case it's stretched the neck out, also pulling the shoulder. Run it back through the die as you did the left case and see if it improves.
This is just my guess. Otherwise it's hard to say. But you seem fairly sorted now looking at the left case.