My grandfather has several old shotguns he wants looked at and restored / repaired. The only main problem is an old JC Whitney shotgun - it was the first firearm he ever bought himself and is a 12 gauge pump. Back then shotgun shells had some sort of perforated end with some form of wadding that came through the barrel when shot. Modern shotgun shells are too long once fired, even the 2 and 3/4 inch shells... when shot are too long to be ejected properly. So my questions are: Can you get an older style shells? Would there be any way to modify it (or have it modified) to accept (and eject properly) newer shells?