Apparently there is a magical shellholder with the ability to adjust itself (and the case) to an off vertical die. Does this imply the shellholder, while under the force of the brass being formed, isn't actually flat (bottomed out) in the ram? Does the shell holders ability to slide laterally allow it to align on a vertical axis? Or does this thinking imply the coarse threads on the die automatically (magically) allow the die to aligned vertically each time the locking rings are tightened?
The squaring of dies is not a new concept. Nor do all dies have a perfectly aligned chamber boring.
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