Before anyone asks, Brass never hits the dirt and I can't see where tumbling would be a benefit early on. Just a choice with these batches. I do normally tumble and anneal for each loading but these are test batchs I am doing a couple of things on. Also have batches of new Alpha , Peterson and Starline in the test for the halibut. Looking, for myself, just to see if carbon in the case makes any difference in any of the monitored data. Lots of time on my hands in retardedment and enjoy answering some of the questions that have entered my small mind over the years. Whatta Hobby!