That wasn't what was claimed by the person I replied to. He claimed at the low rate of firearms murders was a result of the ban. But firearms murders rose after the ban.
The ban was put in place after mass shootings for both the UK and Australia - I believe that was primary driving factor behind it so I am not sure how that stat would or would not be effected by it and would suggest it is a bit of a red herring - and I am sure that data is interesting, if someone had the time to go through it and break it down.
All I can say is that in the UK, you don't need to worry about being shot.