Doubt it. On the other hand, the Powerbelts shooting better in a CVA statement probably does hold water.

Now this may sound crazy but the last HOT primer i used last year with APP 2f, was the federal 209a primer it believe it or not, i had zero crud ring in the barrel. I dont know if its because i lost a lot of the heat due to my head spacing being loose and fouling up the action or what, but i'd be interested in seeing how the federal primer works with the new powder.