I have been using Auto-primes since they first came out, well over 20 years ago now. The first few I had broke the connecting rods, but I called Lee to order more and the sent me several, for free, and I still have a spare or two. At the moment I have three of them, one for spare parts if needed, the other two for each size. I've loaded around 100,000 rounds since I started, and nearly every round has been primed on an Auto-Prime. As long as you keep them lubed a bit, they'll last you forever. I think the metal in the early ones was a bit soft, but that seems to have been cured. Oh, and if think the last one I bought cost me $8.....Don't tell Richard Lee, but I think they're worth twice that!
Papajohn