Caliber means much less than the above. Within reason
Allow me to fix. You can always count on some smarty-pants to jump in and take something to an extreme.
But I can agree with your assessment given common combat cartridges. A hit with a 9mm is far more important than a miss with a .45.
I mistakenly took for granted those who know me know I advocate 9MM as the "smallest" I use for self defense. I should have stated that as part of my first post.
I firmly believe, after much research and evidence gathering, that modern bullet designs and loadings make the service calibers (9MM, .40SW, .45ACP, .45GAP) pretty close in their terminal performance. Since I like to see good results on target which are obtained through a pistol which is shootable, the 9MM gets a strong thumbs up from me. And my wife can work them as well.
