There's two schools of thought there. Both have merit. It can give someone the ammo they need to show you are thinking about killing someone by spending the time reloading ammo you carry.
On the other hand one can say that making the round is no different than choosing a brand and type known to make the most mess on impact. So what's the difference?
I will carry my reloads a lot of the time. Many think this is a bad idea. I don't really agree but I do understand the point. Bottom line is if the shooting gets you in a court room it's the county attorney's job to win his case and he/she will use anything they can do to just that. I have not seen any cases involving this situation. I have nothing to go in really. I guess I should get my rusty rump in gear and get to some research. I like digging through crap to find the good info of odd subjects. I will look into this more. Anything I find I'll post in this thread.