Very interesting discussion going on, and many valid points too. I have read the older discussion about tweaking the laser and there are valid points there too. In my opinion laser bounces have nothing to do with luck - they are a coincidence, but so is a coincidence if I shoot a random rocket somewhere i dont see, but expect my enemy - not because i saw him, but because i am shooting at a place where player traffic is frequent. I'm talking about rocket spam, and if I hit while rocket spamming it's the same coincidence as if I hit with a missed laser shot. I am not comparing the laser to the rl here, just pointing out that luck-shots are possible with the rl too, but they happen less frequent, or are claimed not to be luck but intuition.
I think the main problem with the rifle is that it is superficial to all weapons - in means of attacking another player. You can attack at any range, from standing next to your opponent to being out of his sight, you are hitting instantly and do a solid 5 dmg. Most of the bounces which hit even when missed are a linear outcome of this situation - when you are standing too close to your opponent and miss, the bounce has a bigger chance of hitting back because the bounce is longer; if you shoot at someone from bigger distance the bounce is smaller, and usually at very low angle.
My proposed solution to this problem is to make the laser take damage based upon the length of the ray travelling from the weapon to the victim. The minimum damage would be 2 and maximum would be 5. Being out of hook range would be around 4 dmg to discourage the usage of this weapon in close combat. This would also encourage players to use the bounce on-purpose because you can deal more damage if you hit a close enemy with a bounce rather that with a direct hit. And maybe the bounce could deal 1 additional damage regardless of ray length. This surely wont prevent all luck-shots but I think it will help, since people wont use the rifle as an all-purpose hunting weapon, but only for certain situations like all the other weapons.