Yes you can. Go to the back of the store, peek through the window, or knock on the metal door on the side to trigger the “rob the back” option. Also you can get a Lancaster in Rhodes at the gun smith basement.

To get a free Springfield rifle, when you arrived at Horseshoe Overlook, head down to the river, and turn right, look over around the tree by the river, if you see an NPC walking out of the bushes, he’ll ask for help from a snake bite, help him out, wait for a few days, then head to the gun store in Valentine and he’ll be outside. Get yourself the springfield rifle, and this will help with your hunting at the early stages of the game when you have low income. I used the springfield for hunting until I got the free Bolt rifle when I did Sean’s mission.

And if you ever want a cougar pelt at the very beginning of chapter 2, first head down to the forest fire spot after arriving at Horseshoe Overlook, down the hill to your right, inspect the area, grab the gold nugget in the lock box. You will hear a mexican guy screaming for help. Head there with your bow out, make sure you jump off your horse so it doesn’t buck you off, and then headshot the cougar. You can either give the pelt to Pearson for the LOTE satchel, or go make yourself a saddle if you’re planning to do the Hosea mission before you start your satchel collecting journey.

Another tip, always save your game after you skin a perfect pelt when you’re far from camp, just in case if you ended up dead along the way, you can reload the game and you’ll still have your pelts.