For those who worry over ammo costs in 10mm and own or think about owning a Glock 20 I can honestly tell my story. I read online from a reputable and long posting authority that the Glock 20 will digest .40 SW without a hitch. Being the unstoppable experimenter I had to try. My 1st Gen model 20 had not a bit of trouble with factory .40 or my handloads. The huge extractor on the Glock grabs the extractor grove and holds the round to an acceptable headspace. When I aquired a Gen II it too had no problems with the .40. I got away from the Glocks for awhile because the grip angle was not natural for me but my love for the 10mm didn't go away. I bought a witness 10 in the wunder finish and still have it. It unfortunately does not like .40s so that means more time reloading.
Truly, as to "stopping power" a well trained and motivated warrior with any modern handgun can win the day against evil.
FWIW Alex
Truly, as to "stopping power" a well trained and motivated warrior with any modern handgun can win the day against evil.
FWIW Alex