Don't be too hasty, my friend. There is one small issue with the DA*60-250 f4 and that is that when you focus on a close subject and you are extended to 250mm, the lens is not really 250mm when focused close, more like 200mm. So, of you want reach *and* to focus close, then keep your F*300 as it is a gem too. I am keeping my 300.
Okay, that's what I felt too. That's why I told many guys, if you want the reach, get a tele prime lens