The Telegraph makes much of the fact that approximately 100 children died from gun related accidents in 2013--about two every week. Nothing, though, about the 390 kids (i.e., 14 and under) that drown in swimming pools or spas every year (that is, more than one per day!). Or the 20 that die each year drowning in buckets. Or the more than 9,000 that die in automobile accidents. Or the 293 kids (less than 9 years old) killed by tipping or falling furniture between 2000 and 2011--62% of which were killed by a falling television. How about the 3.5 million children (14 and younger) injured each year playing sports.
In 2000, there were 3,326 deaths attributable to sports (not including professional teams). Only 3 were incurred in firearm related sports, while over 3,000 were due to drowning.
There are 10.3 million swimming pools in the United States. In 1996, there were 242 million firearms in the United States. More recent estimates place the number north of 310 million. Thus, crunching the numbers, it appears that a swimming pool is 117 times (or 11,700%) more dangerous than a firearm to children.