I recently bought this tool from a local source, have an RCBS gauge now but using reamed cut-off barrel ends to move the bullet in case. Pain in the neck and SLOW so I was interested in the adjustment knob on the Hornady. It worked fast and simple, they should all be designed to adjust the concentricity as well as check it. I did have a problem with the adjustment knob, the plastic lump on the end to protect the bullet from damage lasted about 100 rounds and fell off. Bought a bag of 25 10-32 nylon acorn nuts from Walmart for $8. and simply flattened the rounded tops with a sander. Now several hundred rounds later it shows no signs of wear or damage and they work better with larger bearing point. Pick up some spare o-rings for the dial indicator shaft, they will break or loosen at some point so its about [email protected]
well spent. Checked its accuracy against the RCBS and they were both reading the same. With practice you will get pretty fast and its eye opening the difference with different dies on finish loaded rounds. Would recommend for shrinking groups.