Maxing Out Precision Weapons

So I’ve been working on maxing out the precision weapons since reaching 130. So far I have the DMR, BR, and Carbine maxed out. Now I am working on the LightRifle and I am really enjoying it. I’m wondering why more people aren’t using it? I know it has a slower fire rate and such but its a darn good gun. Just make sure the first shot is scoped in and then zoom out for closer engagements, and it will usually hold its own pretty well.