Why didn't the Germans mounted the 7.5cm pak 40 on armored tank

What should ,the Nazi Germany in WWII, have done in terms of armored vehicles , that could offer them a better chance against the Allies ? : r/TankPorn

In WW2 why don't they mount semiauto/autoloading Cannon e.g. BK 5/BK 7,5 into tank to increase their effectiveness and lowering casualties (less crew)? - Quora

Why didn't the Germans mounted the 7.5cm pak 40 on armored tank destroyers like the StuG III and Jagdpanzer IV? It would've simplified the logistics for ammunition and give it better performance

Vehicle facts appendix with pictures - Warsaw II: The Tank Battle at Praga, July-September 1944

How many Leopard 2A7 MBT could Germany produce each month if they went to full production capability? - Quora

Why wasn't the Panther tank not equipped with an 8.8 cm KWK but with the 7.5 cm KKWK? - Quora

Gaijigglez plz: 7.5cm Pak 40 auf Raupenschlepper Ost : r/Warthunder

Sd.Kfz.139 Marder III 1:72 Diecast Model - Legion Models LG-12023LB - $24.95

A Bundeswehr tank officer told me 'a Chieftain is an improved Centurion', did he have a point? - Quora

Why wasn't the Panther tank not equipped with an 8.8 cm KWK but with the 7.5 cm KKWK? - Quora

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