Since I'm new to reloading I did an experiment to see if my new pin tumbler or my Ultrasonic cleaner would work better. I've had the Ultrasonic for several years to clean fishing reel parts & it works better than scrubbing them with dawn. I had the pin tumbler going for a while then started the Ultrasonic. I ran the pins for 3hrs & the Ultrasonic for 40 minutes @ 150deg. I used a few squirts of dawn & a little bit of lemioshine in both. I think the pin tumbler works a little better even though it runs longer. The pins just seem to polish a little better. 1st row pin tumbler & normal amount of lemishine & dawn 2nd row pin tumbler & a little too much lemishine...notice the gold color 3rd row Ultrasonic with normal lemishine & dawn ratios. Notice finger prints & scratches.