"Actually the .45 has an undeserved reputation for jams in my opinion."
It's been my experience that that reputation is well deserved. And it pains me to say that. It's like insulting the Pope, but the truth is just that.
No matter what it's reputation, whether good or bad, a gun does not last a hundred years and remain more popular than ever without being reliable.
A lot of shooters don't appreciate the fact that a lot of reliability in a recoil operated pistol depends on your technique; A .45 has to be "stiffarmed" with wrist and elbow pretty much locked, while a revolver generally likes a bit more of a relaxed stance and grip.
If you "take up recoil", the slide may not come back far enough and it will "jam".
I've heard of an instance where one shooter would constantly shoot "keyholes" - his bullets were going through the target sideways.
Any other shooter could fire the same pistol just fine.
It turned out that by some fluke, the chap was "breaking" his grip just as the bullet exited the muzzle, tipping it out of it's axis and sending it tumbling end over end.
And it happened with about every shot.
How weird is that?
But if an auto pistol is balking, it might not be the gun or ammo's fault; let a few other pistolleros shoot it and see what happens.
Also, a new autogun usually has to be "broken in" with about 500 to 1000 rounds before it becomes 100% reliable, and not many of them are totally good to go out of the box.