...and I know what you mean by the newbie bashing!
The big thing all these gun control nuts do is include criminals. Most of their "stats" count you a child until 21 (some take it all the way to 25), and they don't remove self defense related deaths. That's an important reason (IMO) why they count someone as a child for so long. The most criminal age bracket is 17 to 25 (accounting for a little over half of all violent crime in this country), so by grabbing as much of that age bracket as they can they get to include gang bangers killing each other, muggers and rapists being killed by their intended victim, bad guys fleeing from cops, and drunk morons playing Russian Roulette. Assuming an even distribution in that age bracket each additional year you include in your stats gives you 6.25% of all the violent criminals in the country (1/8th of 50%); this is shown above (somebody gave hilights from the CDC site) because the lion's share of the deaths are in the murder/ legal intervention category.
It's the equivalent of trying to ban airplanes by skewing your crash statistics to get stunt pilots crashes treated like jet liner crashes (or something equally silly).