I'll just add one thing. Specifically about loading for the Shield 9mm. The Shield is well known to have stiff recoil springs. Takes a little more muscle to get the slide back all the way. Well, same thing happens during live fire. The gun needs a extra oomph from ammo to get that slide back. What I'm saying is that loads in the bottom "starting" range may not fully operate the gun. I have learned, over time, that I don't have to start at the very bottom of the load range and work up. I know that I can safely start in the middle of the load range. I have never experienced any signs of excessive pressure in any mid-range loads. And, I rarely load up to max. I usually find a sweet spot between mid and max. Same is true for the Shield.