About a year ago I decided to go with 9mm as the caliber I would use. While I do have a Ruger LCP380 as a pocket gun back up. I began to wonder can the 9x18 used for the Makarov be fired in the 9mm Luger safely? I have to think that over the years this has happened being the 9X18 and 9X19 at first glance look the same. Understand theirs no way I would ever try this but is there any danger if this did happen?