Oklahoma Justice

Wow! Basically these guys are black-ops killers on horseback. Set shortly after WW2, the fellows on the Rostron outfit operate outside the law, mostly in the American west, taking care of threats to the United States when local law enforcement and the FBI can't get the evidence they need. This time around, everything goes to hell in Oklahoma City over some atomic secrets and the boys in the outfit are willing to do whatever is necessary to get away. I lost count of the people they killed. This series was published in the UK. What were they thinking? Weird!