I don’t measure concentricity and that had nothing to do with my question. There are several arbor presses available and to avoid listing all options I asked which people prefer not including the AMP because that’s way outside my budget.
Never said anything is wrong with the Forester seating die. I just want to work an arbor press into my process to try something new and have as a tool when doing seating depth tests. No problem with concentricity.