Punkin balls can work but there is great variation gun to gun. Most you could expect of them was to get a hit on a deer at 50yds or less. Part of the problem was lack of sights on the shotguns. I killed one deer with them as a kid out of my single shot "Ivory Johnson" 16ga. Range was about 20 yds. The projectile is quite effective if it makes contact. I would think accuracy might marginally improve using a plastic wad which tightened up the load in the bore but still pass on shots longer than 50yds.
