I saw this paul harrell video on police changing from 9mm to 40.. and the merits of both 3 years ago. I just watched it today and found the logic and conclussions excellent. Before posting or trying to argue a point I would ask you to really watch the video , and do so with an open mind. The ammo tested 3 years ago is still the same high quality improved ammo far different than ammo made 15 or 25 years ago.. so this video uses the improved ammo we try to discuss.. I agree with paul harrells conclussion. He is beyond highly skilled and respected.