Using remington, winchester, federal brass for my reloading after shooting factory loads. Get 10+ reloads and never clean or trim it. Oil it for reloading and wipe the oil off w rag, that kinda cleans it some.
Loading 2900 fps pretty much, not pushing anything hard w 30-06 or 243. Shoots better than I can. I measure the brass and it stays the same length, pretty interesting when reading about how folks trim their stuff all the time.
Hornady brass is softer and loses velocity w same load as the above brass...