I only size about an 1/8th inch of the case neck. No lube at all. Never had an issue,but I use WW cases, which are pretty thin.
I don't think I'm generating much pressure, using 1680 powder, either, so I'm not overworking the cases at all.
I'm loading for a CZ, dunno if the chamber is tighter than any other rifle, it's the only Hornet I've loaded for.
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