dog that fights

U might consider castration/neutering. This is more effective on young males.
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Hunt him by himself or with females only. If u have all males, maybe u can place him with someone who will hunt him alone or with females. Shoot them straight about his flaws.
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Try to identify his trigger points and avoid putting him around other dogs in those situations. In the dog box? Around feed, etc.
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Put the shock collar on him at home. Every time he postures up to another dog, buzz him. Do this regularly and consistently. This method is more effective if u have a confident dog that will turn away from him when he postures up on them.
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I understand your frustration. I can't stand a dog that is just flat mean. Dogs like that have ruined many hunts and friendships. Sounds like u know what to do if he is not fixable. Good luck.
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