Yes, you are right. BTW, I am writing about German shotguns and their use in general, not about any 1 in 1000 exceptions that may or may not exist. Note, even Wilhelm Brenneke’s bragging groups he used for advertising his slugs in the 1930s were not shot with one of his own make drillings or double shotguns, but with a 12g Browning A5 full choke autoloader, sights unknown.