Hackamore Talk Brad Barkemeyer explains the importance of using a hackamore and when you might use one on your horse. By H&R Editors | July 30, 2019 Learn about hackamores with Brad Barkemeyer. Have you been curious about if you should use a hackamore on your horse? This week on Horse&Rider OnDemand world champion trainer Brad Barkemeyer breaks down the hackamore. Not a member? Be sure to check out our 7-day trial here.