This may be true of that gun/scope/skill combination, but today I found a unique sniper rifle that hits with pin-point accuracy at extreme range, and I have a 45 gun skill.
Spoiler tag included for privacy
Spoiler
The "Ratslayer" is a .556 sniper rifle with a very powerful night-optics scope on it AND a silencer - and retains unbelievable accuracy. I can't even register the hits or see them with normal vision, but when scoped I can tag a monsters at the edge of visual range on the head and watch them crouch and grab their head with both hands.
It's AWESOME.
That said, I think it has everything to do with the right gun/scope/skill/etc combination that makes it effective -OR- the only good scopes will be on the unique guns... We'll have to see.
Miax