According to Perry's "Narratives of the Expedition of an American Squadron to the China Seas and Japan," over 100 blanks were fired during the squadron's two visits for the purposes of celebration, appreciation, and signaling, while Japanese sources write that these gun shots created great confusion, but there was no damage, and it is unlikely that actual fighting occurred.
ペリーの『日本遠征記』によると、2度の来航で100発以上の空砲を祝砲、礼砲、号砲の名目で撃っており、日本側史料には、これが大混乱を巻き起こしたことが記録されているが、いずれも被害は無く、実戦は行っていないはずである。