Why 105 mm guns displaced the 88 mm generation

Why did armies stop using 88 mm guns when the German weapon had been so effective?

Because 105 mm systems soon offered the more attractive postwar step, while other armies already had comparable calibres and their own development paths.

A viewer asks why the celebrated German 88 mm did not remain a standard postwar calibre. The rapid move to 105 mm weapons offered a better next step and made the intermediate size less attractive. Other armies fielded comparable weapons, including Britain's 3.7-inch gun and later 20-pounder as part of the same evolution. Calibre choice depends on contemporary alternatives and does not erase the 88 mm's wartime reputation.