Mark, you are absolutely right about the ultrasonic cleaner removing the carbon deposits, but.......... no ultasonic cleaner will uniform the primer pocket which is equally as important as cleaning it.
Hi Dicehorn.
I do my pockets and flash holes on the brass when its new,Tried doing the pockets when prepping cases after firing and the cutter removes nothing,so just full length and trim.
Lapua brass needs very little work i have found.i'e flash holes and pockets are very good when its new.
mark...