Tommy,
If you worked in the UK and said '..... heading tree hundred' you would be shot. But what you say may very well be standard R/T in Sweden.
Which nicely illustrates the weak point in all this effort to ensure controllers use 'standard R/T'. We each use the phrases deemed acceptable by our respective national aviation authorities, but in spite of ICAO there are numerous differences between each state's standards. So our customer - the pilot - flying on an international route, will be subjected to a number of variations on a theme and have to interpret them all accurately. What's the betting in a normal day he will hear both 'One tousand' and 'One zero zero zero'. He'll know what it means. Isn't this all getting a bit anal?