Sorry, but it is correct. The various .22 caliber "shotshells" are not true shotgun shells, rather modified single projectile cases. You can also buy these modified "shotshells" in .44,.38,.357 and .45 Colt. There is a difference in shot shells and shotgun shells, shotgun shells being designed for use in a true smooth bore shotgun. They now make a handgun that will shoot .45 Colt and .410 bore shotgun shells interchangeably....if I haven't already said that. I have handloaded shotgun shells of several varieties for close to 45 years. I also reloaded shotshells for my handguns long before they ever became available by the manufacturers. I also own a 9mm smooth bore shotgun side by side with a .22 long rifle that is made in Belgium. It is a WWII souvenir that my dad brought home. Cheers. Monty