You are correct that the run out is pretty severe. I think as I develop better loading techniques and perhaps invest tens of thousands of dollars in new tooling to produce this round I can bring run out to within acceptable standards.
Good eye on the double venturi shoulders. I firmly believe with a round such as this can realize a significant boost in performance and cartridge efficiency with the double radius shoulder. I fully expect to gain 12-15 fps over the same round with a standard shoulder.
