A few points to consider.
New brass should be smaller than the full length resize die - so a full length resize die will not make a new case any smaller.
The fact that the TUBB die resizes your fired case from .472 to .468 indicates you either are using a set of dial calipers to measure (use a micrometer) and or whoever chamber you rifle didn't do so well (SLOPPY CHAMBER)
The TUBB die adequately small bases your fired piece of brass which will only make it shoot better groups and your bolt open easily.
Also I have yet to encounter a piece of brass which was small based each and every time and failed at the web because of this .
The reason the a piece of brass fails at the web is because the body of the case is being overly stretched (when fired) and then full length resized based on too short of a headspace measurement.