Frank Hamer apparently took the gang's weapons after he and the posse killed them. If a Krag was one of those weapons that was taken by him, there may be a good chance that it is in the Texas Ranger's Museum in Waco. Frank Hamer is in the Hall of Fame at that museum and I would not be surprised to see his memorabilia on display at that location. I have not been to that museum since I was 7 years old, so it has been a long time since I was there to look at or understand artifacts of that nature.