Tumble before sizing and again after to get lube off.
I hardly ever clean my brass, it is all rifle brass.
I'm in the "me too" camp.
I use walnut shell media in a vibration tumbler.
Before and after sizing - only costs an hour of electricity and the cases look pretty![]()

Tumble before sizing and again after to get lube off.
I tumble every firing with spent primers in, then I de-prime and neck size. I clean my primer pockets manually. No lube when neck sizing. Only when bumping shoulders.
Reading all these posts would lead a newbie to conclude the tumbling brass is a required step. It is not. I tumble mine, nearly always before resizing, but it is not required in order to make good ammo, it just looks nicer.



























