Most countries tested there rifle for accuracy after the targeting shots or concurrent with same once they got good at setting the sights based on bore-sighting.

It is known the Germans, Canadians, Swissicon, Brits did it and the US (but not rebuilds in all cases). Number or rounds per rifle was typically 5 to 7, hardly a huge drain on a nations supply of cartridges.

Not sure about the Italians but one would expect them to do that as well. While we view them as jokes now, the Italians were not seen that way prior to WWII, Liddell Hart upon seeing them on maneuvers in the 1920s called them an army of panthers (or something to that effect).
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