I can provide you with information on the MV-22 Osprey and Gatling guns in general.

The MV-22 Osprey is a military aircraft with vertical takeoff and landing capabilities, designed to transport troops, equipment, and supplies. It is operated by the United States Marine Corps and the United States Air Force.

Gatling guns are a type of rotary machine gun, typically with multiple barrels that rotate around a central axis and fire continuously when the trigger is pulled. They were first invented in the 1860s and have been used in various conflicts since then.

It is not uncommon for military organizations to test and evaluate different types of weapons and equipment, including Gatling guns, to determine their effectiveness and suitability for use in various scenarios. However, any specific information regarding tests conducted on the MV-22 Osprey and its armaments would be classified and not publicly available.