Kreighshoer
Active member
Even a replacement barrel would not be gray. The gun was treated with a dark gray primer designed for high temperatures but it was painted before delivery. The only dark barrels I find in photographs are discoloration from heat (just a darker shade of the overall color) and a few prototypes with guns not ready for service use
what saúl said! nothing more to add here from my side.
the 75mm KwK L/70 gun installed on the panther was more powerful than the 88mm KwK L/56 installed on the tiger 1 while the smaller caliber allowed more ammo to be loaded, that's why the 75mmL/70 was also sported on the guderian duck (and because the 88mm KwK L/56 would have been too powerful for the pz4 chassis and warped it upon firing)