I was surprised to find that the UK death toll from guns so far in 2012 was 22.  I couldn't find even vaguely current comparables for the US, but with a population 5 times ours they have more homicides per diem than we have per annum.  Add the larger number of suicides, accidents etc and it's a humungous number.  But they do on average own a gun each, that's 300m weapons.
They're never going to change.  Its sort-of in the constitution if read with brain turned off.   Mind you, their road death rate is over three times ours too.
Japan, which has tougher gun laws than us also has a lower death rate from them.  Seems logical somewhow.