This is one of the reasons why I got "lazy" and started buying all new brass every year. This way I have very minimal (if any) trimming/deburring. One of these cold winters I am going to sit down in front of my tv and trim/size/deburr all my spent cases (probably 500 + 7mm and close to 1,000 of 243 all once fired). I have a buddy that comes and helps me every once in a while cuz he likes to learn new things, so that makes it more enjoyable to me when I have someone to BS with. This is where I screwed up a few years back, I bought 1000 cases of once fired Lake City brass for my 223, I trimmed/deburred/sized all of 'em, and seated benchrest primers in all of 'em. Now they are sitting in my cupboard collecting dust until I buy another 223 to bang 'em out of.