So, the theory goes that you should only use factory ammo for self defense, for legal reasons, namely, if forensics finds you were using federal cases and finds a bullet, they will use the matching round for their gun shot wound residue tests to verify distances and such. Okay, I don't want to start a discussion on whether this is actually true or not, but I'd rather talk about this next scenario:
Instead of reloading previously fired factory ammo, what about loading a generic bullet (like lswchp) into starline brass? There's no way that a forensics team could determine that it was factory ammo, so they would either have to use the remaining rounds in your gun or none at all.
Now, I'll be honest - I'm not going to do this. I don't have a problem with buying quality self defense ammo for various reasons, but I'm interested in the legal aspects of this, especially for people who reload hunting ammo that may get used for self defense in the field.