Just back from the range--despite a forecast of diminishing winds--it was still blasting pretty strong with gusts to 20+; however after the adjustments the gun is humming like a Stradivarius.
Had a couple more CCI #41 primers pop out today; I again checked cartridges that had been cycled through and I'm still getting some deflection of the tips off the rim face on the way in--I believe causing some bullet set back. I believe my reasoning is correct because the primers popped on mid-range loads that were loaded from the magazine by the normal cycling--but when I simply dropped the bolt on a cartridge that was positioned in the chamber; using very warm top end loads--there were no popped primers or other signs of over-pressure.