RAW it says, for Horde Breaker "Once on each of your turns when you make a weapon attack, you can make another attack with the same weapon against a different creature that is within 5 feet of the original target and within range of your weapon."
RAW for loading property it says "Because of the time required to load this weapon, you can fire only once piece of ammunition from it when you use an action, bonus action, or reaction to fire it, regardless of the number of attacks you can normally make."
My take is that it does, but the Horde Breaker does not make mention of properties related to the weapon, it just says you make another attack.
Has big implications for one of the players in my group, as I think we have been running Horde Breaker wrong for like awhile. lol
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