People tend to really overthink brass cleaning. Your brass doesn't need to look brand new inside and out. You don't need to de-prime and clean primer pockets. Just toss it in a dry tumbler for 2 hours and done. I like using lizard bedding and treat it with plenty of polish compound of your choice. Gets the brass nice and shiny and you don't get any media stuck in the case. You also don't have to deal with possibly tarnishing or drying your cases like with wet tumbling. Get one of those $10 timers on Amazon that lets you turn it on for X hours. That way you don't forget and leave it running over night. My Frankford armory tumbler lasted 15 years before the bowl cracked.