re: New article from American Rifleman concerning stopping power

This is good data, and is confirmed by numerous other studies. Terminal ballistics (and not much else) matter with handguns. Penetration is the primary consideration, and expansion is a close 2nd.

However, I have yet to determine the time frame in which Mr. Mann did his research. I suspect it was done over quite a few years, only because some of the newer and more effective ammo (Ranger-T and HST) aren't listed (both of which penetrate at least 12" in gel, and both of which routinely expand to diameters greater than double their unfired diameter).

FBI test protocol requires minimum of 12" penetration in 10% ballistic gelatin, with good expansion. (12" in gelatin does not equate to 12" in a human torso). One can quickly see where the smaller calibers, and the Glaser in any caliber, fall short in one, or both, of these criteria.