There are absolutely no grounds for prosecution based no handloads, trigger jobs, acessory sights, grips, blah, blah, ad nauseum. Urban myth. A righteous shoot is just that, doesntmatter if you used a .17 Mach 2, or a .50 BMG. You had the right to defend yourself, you saw the need, and you took the oppurtunity.
In civil cases, its a different matter. The fact it, if you kill someone, you will be sued. It might be frivolous, it might be bogus, but it will be a lawsuit. You might lose on technicalities such as handloads, etc, but I would venture to guess the same would apply to long hair, and driving a Camaro. The plaintiff will use anything, and it doesnt matter what you prevent, they will go after something else.
In civil cases, its a different matter. The fact it, if you kill someone, you will be sued. It might be frivolous, it might be bogus, but it will be a lawsuit. You might lose on technicalities such as handloads, etc, but I would venture to guess the same would apply to long hair, and driving a Camaro. The plaintiff will use anything, and it doesnt matter what you prevent, they will go after something else.