The Georgians began making animated films pretty early, their studio was well-funded (due no doubt to Stalin's Georgian background), and for a while it was the only place where animation was being produced outside of Moscow (in 1939, Leningrad was still making a few as well, but not for long...). But the quality of their animation was subpar for a long time. This film is a good example of their earlier work. The motion is smooth (it's animated on ones, as far as I can tell) but there are many elementary mistakes in animation character consistency and timing. Even in later decades, it seems to me like they had more trouble keeping the animation quality high than any of the other Soviet studios.
I wonder if the screenplay was written because someone in charge knew that a big war was not far off, and wanted to encourage young boys to learn to shoot their rifles well, since they would soon need it...