One of the lesson's that I learned reloading was that the plated bullets I was using could not stand up to velocities over 1200 fps. They would shed the plating and key hole. Under that they were okay for practice and "easy" targets.
An Internet forum is like having a friendly conversation over a drink at a local tavern.
Some guy at the end of the bar always has to stand up and shout something that makes no sense at all.