I've been reloading since 1996. I've done all the above and worse. I did the worst thing imaginable. A buddy of mine came in as I was loading some test loads for my 45 colt and started talking to me. (can you see where this is headed?) I double charged one and didn't realize it. Luckily for me but not the pistol I didn't get hurt. I had a stainless ruger blackhawk. It blew the cylinder in three pieces. It buckled the top strap as well.