In my experience with cases stuck in dies, it’s the area in front of the web towards the base that usually binds in the LGS die if you’re light on lube.
If you want a very good case lube that is cheap, rock into your compounding pharmacy and ask for Anhydrous wool fat. About $15/100 grams and will last a life time. Only need a smear. Or you can dilute a small amount with a bit of solvent (shellfire) and make a spray pack up.
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