Best by far, especially for rifle case priming, and I never miss an opportunity to recommend this tool. Yes a bit expensive at close to $100 with shipping but well worth it.
I have the RCBS bench mounter primer, I also have the Lock Miller and the one sold by Herter, not a problem, both use the Herter type shell holder. Both have shorter handles than the RCBS priming tool. When I have to stand on the handle to seat a primer there is something wrong, It does not take me to look at something when determining there is something wrong.
F. Guffey