I'm trying out my new Frankford Arsenal rotary tumbler. I bought it to clean the baffles of my .22 suppressor, but found it cleans brass crazy clean. Not as complicated as some people make it look. My Lyman vibratory might get shelved. Also working up subsonic loads for my 9MM's. Working with 147 gr Lyman's and Eastwood powder coat. 2.5 gr. of Tightgroup looks promising.