Ah you posted as I typed the last response.
The legal issue is if you make your own rounds, an agressive lawyer for either the Prosecution and /or the inevitable civil suit to follow will say that you used 'special secret super-lethal bullets' that you cooked up in your basement, which shows that you 'clearly' were a homicidal head case.
The message the pros put out is that you should use factory ammo or ammo that your local police use, so as to avoid that line of questioning.Of course this advice doesn't help if you carry a different caliber than the police, or if you have a gun with a hard to find ammo type that isn't made at factories in great quantities.
Plus, as I stated in my last post....I cannot see a vicious attorney giving you a pass because you used the same round the cops did. They'll just as easily say you were an irresponsible fool because you choose to carry law enforcement rounds when you ARENT a sworn officer.
Either way, factory or reloaded odds are you're going to court.