Here is the full list of all 79 Westerado: Double Barreled achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Convince the Ticket Salesman that you're from the Transcontinental Express.
Lost Miner and Miner's Wife both move on.
Sister got the river in Santa Anna flowing again.
Unlock all playable Characters
Trains back in town
Find the Movie Set
Retake our land!
Unlock all Weapons
Help the Indians get past the Military Blockade.
Free all of the Buffalo enslaved by the Ranchers.
Obviously you had to shoot all those people, they were coming right for you!
Can't read my...
They read it, you weep.
You just can't keep your hands off the stuff.
Come on now, what did those lizards ever do to you?
That buffalo wasn't even wearing the right hat.
Two thousand dollars in the bank. It's a lot of money. Takes me three years to earn it!
Where do you think you're going?
Digging beyond the veil.
Dispatching justice will require style!
Now where is that deputy?
Finally got that Miner's Hat.
It speaks louder than words.
Make the graveyard safe to visit.
He shot you? That's not what is supposed to happen.
Beat the game as the Gunslinger.
Explore all the things
Explore more
Explore 100% of the map
He had it coming to him.
Rancher Franchise Made.
So you had to shoot a few people, right? No big deal.
Explore 50% of the map
Don't go thinking you're Annie Oakley, those three hatshots in a row were just a fluke.
Keep all buffalo alive during a Buffalo Drive.
Bla, bla, bla. You just keep jabbering on.
Soberly together again.
This again? We know we just gave you a gun, but you might not want to shoot everyone.
Sadly we have no knives, so you won't be running any faster.
Onwards, adventure awaits!
You pretty much shot more people than actually exist, congratulations!
Beat the game without getting shot
Beat the game with less then 20 kills
Beat the game in less than an hour
Beat the game as the Brother
Beat the game as the Sister
Beat the game as the Indian
You know exactly what's on his person.
A side of justice with your revenge?
Magnificent might be a bit of stretch, but the Seven part is undeniable.
Unfold the secret of the animal statues.
Unlock all hats at the Haberdasher.
You just became the biggest star here, since there isn't anyone left except for a few extras.
Your Dad was the Murderer.
You were the Murderer.
Your family wouldn't give up their land.
Too much PDA, bro.
Your mother loved an Indian, and was hiding them in the walls.
They were all in on it!
You found all the endings!
Prevent any packages from being stolen during the Carriage Protection.
Keep Rancher Bob, Bell and Cobb alive during the Mansion Attack.
Like playing monopoly
Peace between Indians and Military
He has such great personalities
Sheriff's back to kicking Ass
Sheriff's worse than when you met him
Mrs. Tressabell Gunslinger
Mrs. Tressabell Sheriff
Mrs. Tressabell Johnston
The Beefheads playing for the other side
From mayhem to meats, the Beefheads did it all
The banditos are back to causing trouble.
It sh*ts money
Lost Miner reunited with Miner's Wife.
The sheriff helped you 3 times
Buffalo wearing hats and stripes.
A place to start over.
Talk to Oilrig Manager at every drilling location.