FrogReaver
The most respectful and polite poster ever
If your fighter isn't using precision you are doing it wrong...
Ok, this is how I see it. Let's do a little white room theory crafting.
Assumptions:
- Both archer fighter and archer ranger start with the same combat stats.
- Both take sharpshooter at 4th and the fighter takes an ASI at 6th so he's got +1 to hit and damage
- 6th level
- an adventuring day that is 20 rounds long and includes two short rests.
- Ranger takes Colossus Slayer for simplicity
- Fighter is Battlemaster
So, 20 rounds of combat means the fighter gets 46 attacks to the ranger's 40. Presuming a 60% hit rate (or thereabouts) the fighter hits 28 times (rounding up) and the ranger hits 24 times. Ok, so our fighter deals an extra 12d8 damage (again assuming Battlemaster) +28 for an average of 82 points of damage over an above weapon and sharpshooter. The ranger is likely going to get Colossus Slayer 60% of the time, for an additional 14d8 damage (14 rounds of CS out of 20), plus he's 6 hours of Hunter's Mark to play with meaning he's likely going to get that about 80% of the time for an additional 19d8 points of damage. He averages 33d8 points of damage over and above weapon and sharpshooter for 148 points of additional damage.
IOW, our 6th level ranger is dealing about 30% more damage over the BEST DAY that a fighter can have.
So, how is the fighter catching up that 40 points of damage? Note, that while the fighter does have +1 to hit, the ranger is getting advantage on attacks in the first round of combat most of the time. That's mostly a wash, if not an advantage to the ranger since he can use Sharpshooter in the first round of combat most of the time without any real penalty nor needing any outside help.
This is why I'm not seeing how fighters are even remotely in the same league as other classes. And it shouldn't be like that. Fighters give up any out of combat abilities - no tracking bonuses, no movement bonuses, no spells, nothing. Fighters should be the clear winner in any DPR competition. At the absolute best, they get to equal another class.
And if it takes 11 levels just to finally pull ahead, then something is seriously wrong.