Ok, just got done casting and lubesizing a couple thousand rounds in various sizes and weights..
There's always at least a bit of lube on the base of the bullets after it comes out of the lubesizer. I am thinking that each bullet base should be de-greased prior to seating as it will be in contact with the powder charge. But then it may not matter...
Has anyone put it to the test? Under the heat and pressure, I think that it may all come out in the wash.