As fast as you can get hits means nothing much.
I thought in your posts you were recommending the 9mm poweRball because of massive power, and ease of control...control meaning less recoil impulse to overcome before the next round can be fired.
Rapid accurate fire can be the deciding factor in a gun fight. I'm sorry I forgot to say, but we do utilize a competition timer during the pistol matches. I wouldn't say what I said without proper verification of my statements. My pistol is not a GM, I use a stock Sig P220 ST, a stock S&W 686 4"bbl 357, and the shotgun is a simple stock Mossy 590 w/side saddle and sling. I have had no trigger jobs, nor use special optical sights, and no recoil compensators.
We all understand that 45 ball, 9mm ball, and other ball ammo is not the premier choice for defense.
The speed at which I shoot is nowhere less than 1 round per second. We're talking way faster, and I have competed man to man with some very experienced shooters. Some of which have had LE duty; that is not to say they are perfect shooters. But the ability to maintain proper control, placing rounds where they need to go as fast as they are needed is all that can be done under certain circumstances.
As for the GD HP not expanding well, I have heard otherwise. The fact is bullets are not just simple lead and copper, while hoping for the best. We have principles called technology. We can now design bullets to perform under certain parameters. The 45 caliber GD HP has a big mouth for a reason. The cavity and jacket are fluted on the inside, to promote easier and uniform expansion. The size of the mouth is because of the lower velocites encountered with the 45. More fluid/flesh can fill that cavity, and because of its size, it opens more readily. That is why 9mm GD HP have smaller cavities, because of the higher velocities encountered.
I can talk to the BG with whatever I feel comfortable with: my selection would either be a 45, or a 357 mag. I don't care whether he would be just as scared with a 22lr as with a 50 AE. The fact is he doesn't (nor should) know how much I practice with tthem. That is for me to know, and decide, should it be necessary to protect innocent life. I must say, you are a fun guy to talk with :grin:
-Patriot