Power residue on case shoulder
Starting to see it on a few Lapua cases that have been used 10x and were annealed 2 shots ago. Powder residue down to about datum, no further. Not all the way down, just dipping into that area with the rest on the neck where it usually is.
In the words of Ren (from Ren and Stimpy fame): "What does it mean?!" Is annealing in order again, already?