Just back from my first session with this tool. Took my time and read directions. Priming 308 once fired, trimmed, swaged brass. Worked fine once it seem to break in. Trouble though with thin metal strip with a small down facing spring bending. Took the unit apart and fixed that, it's a bear to reassemble but it's now working. Parts seem fragile though. Strangely it also bent the rim of the case from the upward force on a couple, thing does have leverage. Like all LEE tools, you need to be patient and a tinkerer of sorts. Had a good experience recently with the service folks on the quick trimmer.