Well, nowadays there is no big differences between the differents tanks. The only big difference only resides in the condition of the fire-on-the-move function and the refinement of the FCS. -The Leclerc had been built around the concept of firing on the move. This function is nominal by balancing the gun, the turret and minimizing the vibration of the hull. Each time the armor packages have been changed or each time a heavy component has been installed the balance of the turret has been re-evaluated and counter balanced to minimize inertia. -The FCS itself maximise the chances to get a first round hit. The handlebars inputs are filtered not to take into account the jitters induced by the gunner being shaken or just jerky aim. The battlesight range is reduced to maximise the hit probability (the value used in the tank is called "hausse forfaitaire" and is inferior to the battlesight range which is calculated from the V0 and the ballistic behaviour of the ammunition) The FCS includes different firing modes depending if the tank is on the move or not, if the target is on the move or not, etc. There is also a "TRP" function that allows you to punctuate the landscape while you are stationnary. Once you've lased the different points of interest aiming in those areas introduce automatically the range without lasing. Other than that, the other tanks pretty much catch up: electric turret drive, BMS, power management, etc. Just the one in the mind of the self proclamed tank experts... Autoloaders, just like any other mechanical components are as reliable as the amount of maintenance put into it. In other words, if you let it rust in place don't expect it to be 100% reliable.