That particular point made by the NRA is gratuitous at best. If the purpose of your having/using the firearm in a situation is self-defense (and is that not the core of the 2nd amendment?), you are entitled to the best defense you can manage.
Yes, this glut of greedy lawyers has heavily influenced the minute slicing/dicing of equipment used in such situations - purely trying to grab $$ from those who had to defend themselves against a criminal - which misuse of the law is sick and deplorable.
I would be immensely more interested in effectively protecting my loved ones and myself than I would be concerned about a sleazy lawyer trying to profit from my doing something basically sound and correct.
That ammo has been in the gun for a long time - I don't even know specifically what it is or who made it - so neither do you.
