"Any firearm can be used to hunt."

Ha! :-) 

OK, I think you know what I am referring to.  Typical hunting weapons.  Typical defensive weapons such as pistols and many high powered semi-automatic weapons that hold high capacity magazines.  Or perhaps any fire arm regardless should be taxed since in the end people commit suicide and kill with weapons of all types.  Knives and archery type weapons excluded even though those can be used to kill as well. 

"How well is that tax on cigarettes doing for prevention?"

You are bringing it up so you tell me and provide links?  Irrelevant to the discussion.

Curious what solutions to gun violence you can come up with.  Or is your only solution to complain about ideas that might help?