Because we totally have energy weapon technology and the definition of "gun" is necessary.
I personally like Bolt Action rifles the best out of any kind of rifle. I've had a Mosin Nagant for a long time now and I really like it. The only kind of rifle I haven't shot is Lever Action, so I can't say anything about lever action rifles.
I posted pictures of my rifle on here, it's a Ruger 10/22 with a chrome barrel, glowey ironsights, and a camoflauge finish
Yuki has a better topic.