The 30pdr Parrott and the 13 inch seacoast mortar belong to the Paulsons. The Parrott is an orginal and the mortar is one of two that the Paulsons made. We were using 5 lbs of powder to fire the 200 lb shell one mile. They used 7 lbs of powder for a bursting charge. This is on the Fort McCoy range in Wisconsin.
The crews were there by invite. I was lucky enough to serve on both guns.