Berger, there are several reasons I say that. First, "knock down power" is incredibly ill defined. Second, it has been demonstrated pretty well over e years that thee isn't a whole lot of difference between comparable rounds of different common handgun calibers. Another thing is that it has been mentioned that ER doctors are unable to tell any appreciable difference between wounds created with 9mm, 40, and 45. That, and because the people I usually hear talking about stopping power also follow it up with "Yeah, a .45 will stop someone with one shot."
If a pistol bullet had enough energy to knock someone down the shooter would also be knocked down.
I believe that's not correct. For every action there is an oposite and equal reaction, which means that whatever the energy is from the bullet going forward there will be an equal rearward enrgy reaction. It's the law of physics.This is a frequent misconception. The momentum of the bullet equals the momentum of the recoiling gun. The energy of the bullet is much larger than the energy of the recoiling gun.
I have family in Enterprise, AL. Would you please post source and details so I can pass this on.Just found out here in central Alabama that SIG has offered to replace all Glocks (40's) with SIG 9mm free just to increase presence in law enforcement in our area. They just have to turn in their Glock to SIG.
The .40 S&W cartridge is a culmination of engineering excellence for the auto loading pistol. It gives better feeding properties and stacking capabilities.
Just take 8 .40 rounds and 8 9x19 rounds and lay them on a flat surface such as a table. Line them up and then squeeze them together. You will quickly see that the 9x19 rounds form an arc because of their tapered design. The .40 will stack straight. Now you know why there has not been a single stack Glock 9x19 mm pistol so far.
The 9x17 Corto (.380 ACP) is also a straight stacker and that is why Glock produced the new model 42.
The .45 ACP is a very low pressure round and I have seen them bounce off a car windshield where as the .40 S&W went right through like it was paper because of the high pressure loading.
I have shot my Glock 9x19 pistols along side my Glock .40 S&W and can not feel a noticeable difference in recoil at all. In fact, the recoil spring are the same for Glock 9x19 and .40 S&W models and completely interchangeable.
I am no mechanical engineer but I know what I can see and feel to form my opinions as to this subject. Beside we all know what they say about opinions anyway LOL! Just my2 cents worth. I am with the .40 S&W round is here to stay for a very long time.
In all my years shooting 9X19 I have never had feeding problems. Who cares how the round looks laying on a table as long as it feeds which is a problem 9X19 does not have.The .40 S&W cartridge is a culmination of engineering excellence for the auto loading pistol. It gives better feeding properties and stacking capabilities.
Just take 8 .40 rounds and 8 9x19 rounds and lay them on a flat surface such as a table. Line them up and then squeeze them together. You will quickly see that the 9x19 rounds form an arc because of their tapered design. The .40 will stack straight. Now you know why there has not been a single stack Glock 9x19 mm pistol so far.
The 9x17 Corto (.380 ACP) is also a straight stacker and that is why Glock produced the new model 42.
The .45 ACP is a very low pressure round and I have seen them bounce off a car windshield where as the .40 S&W went right through like it was paper because of the high pressure loading.
I have shot my Glock 9x19 pistols along side my Glock .40 S&W and can not feel a noticeable difference in recoil at all. In fact, the recoil spring are the same for Glock 9x19 and .40 S&W models and completely interchangeable.
I am no mechanical engineer but I know what I can see and feel to form my opinions as to this subject. Beside we all know what they say about opinions anyway LOL! Just my2 cents worth. I am with the .40 S&W round is here to stay for a very long time.
I think the reason people watch the FBI isn't so much because of how many shootings they are involved in, but rather because they are the gold standard in ammo testing. I'm not saying their methods are fool proof, nor am I saying I think they are always right, but they have set the standard if for no other reason than no one else has come up with a better system yet.
Now you know why there has not been a single stack Glock 9x19 mm pistol so far.