After abit of pellet testing i found my gun(gamo Phox) loved superfields, cheap ,accurate.
So opened my new tin, quick zero and my groups went from ragged hole at 20 yards to 2" not including the flyers !!
Tried some jsb's pellet on pellet , checked the superfields they look perfect no bents skirts or flashing so anyone else had a mysterious rogue tin of pellets.