The thing is, most studies show the .45 as the top dawg. Sure, some of the new cartridges come close, but none have dethroned the .45.
The study that might seek to dethrone it would be MS because they focus on high energy bullets and the standard .45 does not fit that parameter.
But, MS still places the low energy 230gr .45 at the top of their list. Even they cannot deny the effectiveness of the low energy, big bullet, 45.
The fact is, the .45 works. Even in the worst situation of it not expanding, it still works. Even when compared to the high energy rounds, it is still on top. There is not one shred of evidence that any of the newer calibers are better. Perhaps the .357 Sig is more suited to penetrating cars so it might be a good choice for law enforcement (I would prefer a 10mm though), but across the board, the .45 is just as good or better than all these new rounds. And, the ability to penetrate cars and walls and such can be a BAD thing also, depending on the situation.
The only thing these new rounds have accomplished is to put decent cartridges in small frame guns. But at the same time they kick real hard too.
My double stack .45 fits my hand great (because I am a large man with large hands), and it has softer recoil than these new high-pressure rounds.
My Glock 30 is %100 reliable out of the box, in every position I have fired it and every ammo. It is extremely accurate. It holds the maximum rounds by law (10+1). In the best case, the .45 outperforms all the other rounds in pure stopping power, and in the worst case, it is still a .45 caliber bullet which is better than the worst case for other rounds. I can bet my life on the .45.
These new rounds are good, but all they are doing is trying to get a 9mm gun to do what the .45 was doing all along.
[This message has been edited by Red Bull (edited September 01, 2000).]