I make weekly trips to the range and I use WWB to practice and it does Average about one bad round out of 100, but as suggested keep the guns clean and it will keep this to a minimum. If you guys are using any of your pistols for defense please load and practice with high quality ammo also I use...
I prefer the 9mm but I also love the 45. I do not have a 40 anymore but it was a nice round. I think you should shoot what you like. I believe in shot placement no matter what you shoot.