Completing the Explosive Rifle Mastery challenges gives you a trophy/achievement and causes you to get 50% off Explosive Rounds at all Gunsmiths. Enemies MUST be mission or gang hideout enemies to count for the challenge.
- Rank 1: Purchase the Explosive Rifle from the gunsmith in Blackwater.
- Rank 2: Kill 5 enemies hidden in cover with the explosive rifle.
- Rank 3: Kill 3 enemies with one shot of the explosive rifle.
- Rank 4: Kill 2 wild animals with one shot.
- Rank 5: Kill 1 enemy while wearing the US Army Uniform.
- Purchase the explosive rifle for between $2,500 and $15,000.
- Start a mission or gang hideout then wait for them to get behind cover before shooting at them or their general area with an explosive round.
- Simply shoot into the middle of a group of enemies. If you're struggling to find a group of three, try hogtying three people, then place them together and shoot in the middle of them.
- Wait until two animals are together then shoot in between them. The player can not use their own horse, but they can use two wild horses.
- Simply kill a mission or gang enemy while wearing the US Army Uniform. See its page for help with unlocking it.
Complete the explosive rifle single player challenge.