You can find the story book at the general store in some of the towns. Sometimes, it might also be available from specific NPCs during certain quests.
You can try looking in the in-game libraries or bookstores. Sometimes they have story books available for purchase.
To get the best horse in the RDR2 story, you could try exploring hidden stables, achieving high honor levels, or following specific questlines that lead to acquiring exceptional mounts.
You might find it by completing specific quests or missions related to Jack in the game.
You might find story books in abandoned houses or in the libraries of larger towns in RDR2.
You might find it in the game's main questline locations or in hidden chests scattered around the game world.
For the Cattleman Revolver, you can get it early in the game through normal story progression or by visiting gunsmiths. Just keep an eye on the missions and available shops.
You can get some of the best weapons through normal story progression. For example, as you complete certain missions, you'll be rewarded with weapons like the Cattleman Revolver. Some weapons can also be bought from gunsmiths in towns. Just make sure you have enough money. And for hunting weapons like the Varmint Rifle, you can purchase them from the right vendors once you reach the appropriate part of the story.
You might come across off-hand holsters during looting in certain enemy camps or by interacting with specific non-playable characters. It's a matter of exploration and chance in the game.
I'm not sure. You might have to look around different locations in the game world to find it.
The story book for Jack in RDR2 can be found in various places. You could try looking in the back rooms of saloons or in the hidden compartments of stagecoaches. Another possibility is to search the tents of outlaws' camps. Keep your eyes peeled and you might just stumble upon it.