I've been telling people to do this for years. I probably average 1000 to 2500 rounds a week thru my tumbler, some I load, some I sell. Went and bought my tub and collander probably 10-12 years ago. Got tired of sifting brass out with a scoop. I've got around 80rds of .270 brass, and 250-300rds of .45acp in the tumbler right now. Couple hours, shake them out, and put 4-5 hundred .40cal brass in.gypsyman