Fudd, you are in Canada. I speak from experience when I say our on line gun market, if you could call it that, is bereft of sellers that know how to describe a gun. That means, if there is enough at the start to spark an interest, a tedious back and forth, often having to explain what it is we are asking for.
Conversely, it means that a complete ad that offers detailed accurate information, even if it includes “email for pics” typically is well received. When I have sold a gun on line in Canada it’s never taken more than 10 days. Price it properly, provide all possible information, have good detailed pictures that show what needs to be seen.