Re: Old gun, loaded in the front. (sorry for the english, i am danish)
I once started to read a story about the Civil War, described in the foreword as "based on meticulous research." In the first two pages, set in 1859, the author described a pistol marked "Black Powder Only" and referred to events in Harpers Ferry, West Virginia.
I didn't bother with page three of the "meticulous research."