Originally Posted by Doc3402
Your 9mm 127 gr at 1285 fps is equal to the Federal .357 magnum 158 grain. No comparison when you take projectile weight into consideration. Inertia is your friend.
The 158 gr in a 357 mag is a good hunting load but is NOT a good defense load!
I have witnessed numerous shootings with 158's and tested them and they do not cause the large wound cavity the 125 gr JHP do and they, 158 gr, WAY over penetrate. They are made for animals larger than a human.
The 125 gr JHP load in the 357 is the load all other handgun loads are compared to, and for good reason. This load has been involved in many shootings (I have witness several) and the velocities start a 1250 fps (2 1/2 inch bbl) and go up to 1500 fps (6 inch bbl). The most common being the 4 inch bbl at 1400 fps. What the shootings and testing shows is the 1250 fps threshold is all that is necessary to get the wounding to stop the fight quickly, the extra velocity is not necessary to achieve the desired effect. Thus my statement about the 1285 fps in the 9mm.