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