I second this. I have seen some nasty injuries with all kinds of machines. I still think the CTS Trimmer is a great option. Less than $50 but you need to get one for each caliber. Get one for the highest volume caliber you load and try it out. Leaves no burr inside or out! You may not even have to chamfer if you are seating boat tailed bullets. I use a lee universal expander for my 223 and 300 blackout cases and don't have to chamfer, the FCD removes the flare and I can even seat cast boolits.