I broke the priming tool that came with my Rock Chucker Supreme press so I was in the market for a new tool. I looked up some reviews about the Lee Auto Prime, and the RCBS Hand Priming tool but some of the reviews were kind of shady. But the reviews for the RCBS Ram Priming tool were excellent. I went to my local gun shop and they happened to have one in stock. I brought it home, set it up, and tried a couple. It is by far the simplest and easiest way I have ever primed brass. Its not as fast as a hand loader type but it is very affective. Anyone looking to upgrade the way they prime brass should look into one of these.