I bought one of these today to lessen the tedium of prepping 308 cases. I shoot 308 a lot and find that it is the trimming/case prep that slows my reloading to a crawl. I set this up when i got home from the store and set it up to cut at cases 3.010" which seems to be the most common trim length I run into. It is pretty fast and very accurate so far a test of 20 cases proves.~Muir