Thanks for the videos. I have always believed that the M38 fucile corto was a very good design for a service rifle. It didn't have all the bells and whistles, but was simple to produce and effective for what designed for: as a combat rifle.
The video points out one issue that shooters didn't understand when they tested the rifle: the different bullet diameter. But the video missed the other issue that shooters didn't understand: the different sight picture. In the one video where the shooter is sating the rounds are going high, that is because he is using the wrong sight picture.