Jentz Panzertract 19-2
Our experience is that the capabilities of the 7.62 cm Kw.K are good. Thorough adjustment of the weapons and careful aiming ensure high accuracy even at long ranges. With their low rate of fire, the weapons are accurate and have few stoppages.
You forgot to include the preface, "when used in an anti-tank roll." I am curious how great it was at spotting and hitting concealed anti-tank guns with such poor visibility and non-existent crew training.
You also forgot to include...
‘The gun sights in Russian tanks are far behind the German designs. The German gunners need to be thoroughly accustomed to the Russian telescopic gunsights. The ability to spot a hit through the gunsight is very limited.’
Or this...
‘In a Russian tank it is difficult to command a Panzer or a unit and at the same time serve as the gunner Therefore fire direction for the entire Kompanie is hardly possible, and the concentrated effect of the unit’s firepower is lost. The commander's cupola on the T 43 makes it easier to command and fire at the same time; however; vision is very limited to five very small and narrow slits.’
These are all things you have read before and are choosing to ignore, just like the mechanical reliability and crew training.
Barbarossa wasn't a panzer vs. tank affair like it would become in later years (again you know this), and the panzer divisions weren't tasked with destroying heavy armour (which you know). Even if it was are you arguing that Pz4's and anti-tank platoons armed with the 5cmL60 would be of no consequence? Wait, here is your answer...
T34: The T34 that was far superior to the German Panzers up to the beginning of the Spring of 1942 is now inferior to the German long 5 cm Kw.K. L/60 and 7.5 cm Kw.K.40 L/43 tank guns.