(dead perp's family attorney in a civil lawsuit you will most likely have to defend also) will ask you what kind of ammo you used (hoping you will say "hot hand loads, designed to kill on sight), . . .
<sigh> Speaking of the Errornet...
Nobody has ever documented a case where the TYPE of ammo came up in a court case. This is pure speculation.
That said, factory ammo is typically more likely to be reliable than home grown.