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.
Dispatching justice will require style!
Unlock all playable Characters
Retake our land!
Help the Indians get past the Military Blockade.
Free all of the Buffalo enslaved by the Ranchers.
That buffalo wasn't even wearing the right hat.
Now where is that deputy?
Convince the Ticket Salesman that you're from the Transcontinental Express.
He shot you? That's not what is supposed to happen.
The sheriff helped you 3 times
Unlock all Weapons
Beat the game as the Gunslinger.
Your family wouldn't give up their land.
Sister got the river in Santa Anna flowing again.
You just can't keep your hands off the stuff.
Don't go thinking you're Annie Oakley, those three hatshots in a row were just a fluke.
The banditos are back to causing trouble.
Keep Rancher Bob, Bell and Cobb alive during the Mansion Attack.
He had it coming to him.
Rancher Franchise Made.
It sh*ts money
A place to start over.
Trains back in town
A side of justice with your revenge?
Obviously you had to shoot all those people, they were coming right for you!
Two thousand dollars in the bank. It's a lot of money. Takes me three years to earn it!
Buffalo wearing hats and stripes.
You know exactly what's on his person.
Prevent any packages from being stolen during the Carriage Protection.
Explore all the things
From mayhem to meats, the Beefheads did it all
Mrs. Tressabell Sheriff
Sheriff's back to kicking Ass
Explore more
Explore 100% of the map
Where do you think you're going?
Lost Miner reunited with Miner's Wife.
Finally got that Miner's Hat.
Digging beyond the veil.
So you had to shoot a few people, right? No big deal.
Find the Movie Set
Explore 50% of the map
Make the graveyard safe to visit.
Soberly together again.
Sadly we have no knives, so you won't be running any faster.
Bla, bla, bla. You just keep jabbering on.
Onwards, adventure awaits!
You pretty much shot more people than actually exist, congratulations!
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.
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
It speaks louder than words.
Can't read my...
They read it, you weep.
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.
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!
Keep all buffalo alive during a Buffalo Drive.
Like playing monopoly
Peace between Indians and Military
He has such great personalities
Sheriff's worse than when you met him
Mrs. Tressabell Gunslinger
Mrs. Tressabell Johnston
The Beefheads playing for the other side
Lost Miner and Miner's Wife both move on.
Talk to Oilrig Manager at every drilling location.