Bass,
What do you think about this boolit for the long throated Whelen? It holds about a half grain of lube. There's no crimp groove because this design is basically for a single shot. However, the case mouth lands about 1/16" above the top of the lube groove, so I suppose the boolit could be "Lee Factory Crimped" into place (after having Lee custom make a Whelen FC die).
MJ