Be careful in selecting a particular round based on *ANY* law enforcement agency's choice. Ever heard of going with the "lowest bid"?
I enjoy reading any and all bullet testing data, especially when it's done on subjects such as deer. In my opinion, which is as worthless as anyone else's, an average 150lb deer would be a fairly close simulation of the average human adult in regards to body mass, tissue consistency, etc...
I don't discount data obtained from shooting gelatin or any thing else. In fact, I think those tests are perfect to show how various barriers may affect a given projectile. However, I've never ran into a single felonious block of gelatin that constituted a grave danger of death or grave bodily harm to me or anyone that I had the right to protect.
In my opinion, a living, breathing and adrenaline stricken deer's reaction to a gunshot wound might closer simulate the reactions of an enraged and determined felon in the fight mode of the "fight or flight" syndrome. However, we still have to recognize that the mental process of a deer and most humans(
) differ, therefore a deer's reaction, even if it's completely consistent for every deer shot, may differ greatly from a human hit with the same round.
Even the One Shot Stop and any other data based on human shootings has too many variables to be counted on as a rock solid means of predicting how much more effective a certain round will be than another round for "self defense". There are simply too many variables, such as mental state of subject shot, predetermined reaction to being shot, state of intoxication, etc...
My point? Read all the data you can get your eyes on, be it home spun or scientific, and take it for what it's worth. All ballistic data is simply a record of results under the circumstances and criteria in which the data was obtained. It is not, and never will be an accurate way to predict the effectiveness of a particular round under circumstances other conditions other than the ones that were present during the testing.
My advice? Choose any of the "popular" rounds that feeds reliably in your gun and practice, practice, practice with it and then practice some more.
Remember this...
BULLET PLACEMENT IS MUCH MORE IMPORTANT THAN *ANY* OTHER ASPECT IN A SELF DEFENSE SHOOTING, PERIOD.
In my opinion, this is followed by penetration. After these two criteria have been met, any expansion (JHP's), cutting (Talons), or other tissue damage increasing attributes of a projectile is definitely a plus. However, it can't be reliably counted on. *All* expanding bullets are subject to failure to expand, leaving you with basically a "hard ball" caliber diameter projectile. Murphy's Law will prevail over all scientific predictions!!
Ok, rant off...Flame resistant suit on.
R6