Modern top down attack munitions like HJ12 go through the roof and kill everyone inside the tank, while even older stuff like HJ8 have absurd penetration and will cook the crew the moment it enters. The only way to stop them is thicker armor and aps. There is no scenario where a heavy weapon will penetrate and not wreck the tank.
...the two tanks simply don't have comparable service histories at all?
How many Type 59Gs cooked off and how many Leopard 2A4s cooked off? That would not be a fair question because the Leopard 2A4 has seen way more difficult conditions.
The couple of times when Abrams went up against anything better than RPG-7, results ranged from terrible if it was hit anywhere except the front, to okay, if the hits were frontal. Look at the massacre of Iraqi tanks vs ISIS.
The way the new PLA tank looks, it doesn't look like the turret has room for an autoloader, unless all the images were taken from very deceptive angles.
Future ammo is also just hypotheticals, clearly the design of the new tank shows that the carousel design is continued to be favored for heavy tanks for a good reason.
1. yeah we have APS for a reason, that's to prevent stuff like HJ12s from destroying the tank. What's the downsides of having the ammo seperated from the rest of the tank?
2. They don't. But look at the ratio of catastrophic kills, the T-72 / leopard is clearly higher than that of the abrams, due to the blowout panels in the turret bustle.
3. any inexperienced tank crew using terrible tactics without combined arms would do just as bad against anything better than an rpg-7. What's more striking is how the T-72s fared even worse against anything better than an rpg-7.
4. Well, if they continue to use the carousel style autoloaders, they're gonna be limited in the types of munitions they can use and their rounds will always be weaker than those used in turret bustles due to length restrictions of the kinetic penetrator.
And turrets will continue to go pop, rendering tanks catastrophically destroyed just as easily as t-72s. The reload will also be longer, as the shell has to be lifted and rotated, instead of simply pushed in. Space is also sacrificed. By making the turret longer you can obviously fit more in the chassis.