But that's not the argument, the argument is over is cheap unreliable ammo in bulk better than expensive reliable ammo in smaller quantities.

Is the NATO stuff more reliable or just more expensive and rare? I think the reliability argument is just cope. There are articles kicking around about ukrainians complaining that the abrams tanks are not reliable because they need frequent maintenance. There's this article talking about vehicles Canada donated being bad at offroading. I would like to see evidence that the assertion that NATO stuff is more reliable is actually true.