At this point we need to determine what caliber of cabbage and how many...
Seriously I have learned it is what you are comfortable with, what your skill level is and what your body is able to do. Some of us can't handle a 45, or maybe we will some day as our skill improves. Our maybe the 9mm is the best for me now because I am accurate and consistent, and later I will be proficient in another caliber. I have learned alot reading and online. I have learned alot actually shooting. I know there is alot left to learn.