Last night I was reading in the book "Hurricane of Fire" that in early December 1864 (the Condor ran aground October 1, 1864) that Fort Fisher's commander, Col. William Lamb, had target practice on the wreck. He fired his Big Gun, the 150-pounder Armstrong gun.
The first shot hit the Condor's forward funnel, second one its aft funnel and the third hit the hull.
Of course, the gun was fired in combat later that month during the 1st Battle of Fort Fisher.
Perhaps the Armstrong shells are still somewhere in the wreck?
Using the "Big Gun." --Old B-R'er