Put that 2m radio on 5watts and see how it compares. I run a 5w HT into a halfwave 2m antenna on my car and have a hard time hitting my club's repeater from more than 5-7miles away (urban environment). Other members, running more power than me, get into it from much greater distances.
As a member of my local ARES group, I work special events such as marathons several times a year. 2m radio in a hilly or urban environment without the support of a repeater can be trying unless you can put up a good antenna. The last event I worked, a 24hr marathon in the Prince William County Forest (hilly terrain), made my HT all but useless once I got more than a couple miles or so from Net Control's location. On the far end of the course, they couldn't hear me at all and I had to relay through other amateurs at the event. Net Control was running 2m mobile rigs (50watts) to a vertical antenna mounted on a 20' mast. I could hear them clearly, but they couldn't hear me at all. Now, when I switched to 6m (Yaesu VX-7r), they could hear me fine. CB, being an even lower frequency than 6m would haved worked even better (as would the 10m amateur band).
Of course, if you wanna talk distance, I've gone clear across the country with 5w into a wire antenna on 40m (7mhz). This during our current period of low sun spot activity. Others have gone further with less power.
Sorry for the thread drift...
Chris