How does the 7.5 kwk 40 on the IV Panzer tank compare to the 76mm

The major difference between the Pak 40 and Kwk 40 is the shell size. What were the downsides of the smaller shell used for tanks? Why weren't all Pak 40s made to

Could the M4 Sherman mount modern weapons? - Quora

Are there differences between the Kwk guns and Stuk/Pak guns on German vehicles in WWII? If not, why the different designation? - Quora

What is the difference between the Fury and the M4 Sherman Firefly? - Quora

Are Panzer tanks better than Sherman? - Quora

What is the difference between the Fury and the M4 Sherman Firefly? - Quora

Why was the Firefly's 76mm cannon so much more powerful than the M4's 75mm cannon? - Quora

How does the 7.5 kwk 40 on the IV Panzer tank compare to the 76mm gun on the Sherman Firefly and the M4A3 76? - Quora

What was the best variant of the M4 Sherman? Not including the M50 or M51 variants. - Quora