Successfully complete 3 regions to unlock the .25-06 Bolt-action.
Successfully complete 1 region to unlock the .44 magnum.
13 gauge semi-automatic
Successfully complete 5 regions to unlock the 13 gauge semi-automatic.
7mm Short Mag bolt
Successfully complete 7 regions to unlock the 7mm Short Mag bolt.
Successfully complete 2 regions to unlock the Compound bow.
Get the 30-06 that comes with the scope. Go to the outdoor range and shoot. Press Up until it reads ".20". Put the dot on the red dot on the board (the middle one). Shoot, and you should hit the red dot on the board.
Field scope and .308 bolt action
Successfully complete 6 regions to unlock the Field scope and .308 bolt action.
Finding deer in Wyoming
In Wyoming, go to the second location and go across the bridge. Once there, you can climb on top of the mountains and can see all the deer from that spot. You can shoot them with a 30-30 or 30-06. This also works in other places. Note: Do not go down the mountain when the deer is dead or you will die from the fall.
When starting a new level in Career Hunt, look around your cabin before leaving. You should find some form of transportation.
Hawke Eye scope and .300 magnum bolt
Successfully complete 8 regions to unlock the Hawke Eye scope and .300 magnum bolt.
Successfully complete the game on the easy difficulty setting to unlock Johanna.
Long distance shots
When trying to shoot deer at long range, it is best to try and find a long range rifle such as the 300 BA and pre-test shooting something (like a tree) to see how much you have to compensate for wind and drop.
Static scope and 7mm Magnum bolt
Successfully complete 4 regions to unlock the Static scope and 7mm Magnum bolt.
Successfully complete the game to unlock the X-Ray vision.