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Quote: Could you elaborate as to “losing cases”? Do you mean big oil dents, deep creases or folds, splits, crumpling? I use Imperial sizing die wax (and only the barest thin film as mentioned above). If forming basic brass or necking a cylindrical case, I, like Tony, size only maybe 8-10mm rotate 180° and repeat. Taking the sizing really slowly. Sometimes between steps I rewipe the case with my fingers to respread the film of lube and eliminate it from “building up” in any area. Have not used the old Bell basic cases except for .50 Sharps 3 1/4”, and years ago formed some into .500/.450 #1 Express with no drama. I wonder if annealing before sizing might help? Not had any trouble with .450 3 1/4” using Hornady or Bertram brass, but then those are already formed rather than basic brass. - Mike |