I'm loading 7RUM rounds in a load master press. Since Lee does not (yet, anyways) make a powder charging die that can handle the RUM case, I am using a Dillon die, which overcomes the problem. But it creates another problem, which is attaching the Lee perfect powder measure to it solidly. The Dillon die doesn't have any threads or anything at the top end, only a notch in the OD near the top, providing a small "lip" . I am using an "afro-engineered" (maybe "redneck-engineered' would be a more politically correct term) solution for now, but would like to know what the REAL fix is for this dilema. Is Lee's "universal" rifle powder charging die made of soft-enough steel to allow it to be [hand] drilled out to a slightly larger inside diameter (it only needs to be enlarged by a very small amount)? Is Lee doing anything to address the problem, such as changing the specs on it's universal die to a slightly larger ID? Are there any other solutions that work reasonable well?