Lucas McCain shows off his baseball throwing skills at a carnival game. Chuck Connors was a professional baseball player playing in the major leagues for both the Brooklyn Dodgers and Chicago Cubs plus two years for the Los Angeles Angels in the Pacific Coast League where he got his acting foot in the door in Hollywood. Of note, he threw the ball with his work gloves on.
When Jay Jefferson shoots Col. Beauregard in his hotel room, two shots are heard. When Lucas McCain arrives to the room, Jay reloads his pistol with one bullet but does not eject any spent cartridges. When Jay is done reloading, there are two bullets missing from his gun belt.