This entire decision revolves around the idea of how much fodder you want to give the prosecution.
If you use hand reloads with extra power and bullets with exploding tips and they are dipped in poison and each bullet is engraved with "Die you worthless scum bag, I've been waiting to waste you!", do you think the prosecution will bring that little tidbit up in court???
Of course they will, just as they will bring up
any little detail they can come up with. Trigger jobs, night sights, grip tape, weapon light, they can and will use anything at their disposal to paint as ugly a picture of your premeditated position of being a wacko
prepared killer.
Hey, it doesn't have to be true! This is a court trial. They just have to convince 12 soccer moms that you are less than a poor helpless victim.
That said, I trust my reloads more than factory ammo, and it sure shoots better than factory. In my rifles I can group 5 rounds inside a dime at 100 yards, factory is well over an inch. But I'm not producing 10,000 rounds a minute. I custom create 1 round every 2 minutes.
I carry factory ammo for self defense. It will do the job.
And a comment about carrying a 44 magnum for SD: What will you say when your round goes through the bad guy and kills a kid behind him? I know, it can happen with any round at all, but my defense for using a .40 is that it is the approved carry weapon for all the police departments in my area.
You can bet a prosecutor will produce reams of evidence that the FBI, CIA, Military, Sheriff, and local PD have all rejected the 44 magnum as being far too powerful and the risk of collateral damage far too high to be used as a carry weapon. You'll just add one more hurdle to freedom trying to explain why you need a bazooka when the police carry a different gun.