I cannot throw a super light weight ram rod hard enough to move or damage the ball myself. Heavy steel....ehhh maybe. I still dont think after I seat the ball its going any further down the barrel with a wooden or durlin ram rod bounced, thrown heaved etc. Maybe if ya smack it into a tree? Maybe if its solid steel and ya really really try. I would think the thing would be coming back outta the bore no matter what the material its made of if thrown bounced er what have you enough to further "seat" a PRB. It's a physics thing and I'm not into that science but I know I myself cannot throw a ramrod hard enough to surpass the seating I get with a good solid push down the last 6-8 inches of bore (and then I "lean" into it as well). Again, just MHO and I dont wanna argue or debate it.