Wow. I do the same. 5.5 grains of trail boss under a 180 grain bullet.
I do, however, lube the cases before sizing. I use Hornady One Shot spray lube too, but no pizza box. In my experience, too much lube will quickly cause deformed brass. I don't rely on getting full coverage on any, one case. Rather I spray lightly with the idea that after a few cases through the sizing die, enough lube is distributed to keep things going. So, each case adds a little lube in a random place. That seems to work out well for me. I still get some sizing "bubbles", or dents, in the cases. But, they are small and fire form right out when shot.