The main object of the carrying out was to transfer the production equipment of ammunition for Snider rifles, which were the main weapon of the Japanese Army in those days, to Osaka; according to a record, it was led by Aritomo YAMAGATA and Iwao OYAMA, the leaders of the Choshu faction and the Satsuma faction in the Army, in cooperation with each other.
この搬出は当時の日本陸軍が主力装備としていたスナイドル銃の弾薬製造設備の大阪への搬出が主な目的であり、山県有朋と大山巌という陸軍内の長閥と薩閥の代表者が協力して行われた事が記録されている。