B
BrianBeretta
Guest
I have been comparing data of the 9mm and the .40 lately and i noticed the ligher 9mm grain bullets such as the 124 grain etc. are surpassed by the 40 in penetration and expansion. However I noticed that the 147g 9mm is almost identical in expansion and penetration to the .40 165g loads. This i find puzzling as i never hear of anybody caring the 147g to often, yet it shows to give .40 performance out of the 9mm, what edge does the 165g .40 have over the 147g 9mm?