Which brings up another serious point - TEST the ammo you've got in your carry gun. If you're betting your life on that gun and ammo combination, firing it for the first time in a life or death situation and finding out that it doesn't feed or doesn't cycle your gun properly would suck.
I have range guns that are tweaked, I don't care if they malfunction occasionally. So I lose at a game that I might have been losing anyway.
But the holster/gun/ammo that I carry on my person for self-defense has to work every single time. Because if I ever NEED it, it means that I'm trying to stop someone from killing me or someone I love. That's no time to find out that the ammo I read about on the internet doesn't run in my gun. Or that my gun jams in my holster.
So, I've run 100 rounds of the ammo that I carry for defense through each of the four guns that serve at different times/places as my carry guns, (I've got a G17 and a G43 in each of the two states that I spend time in).
Yeah, 400 rounds of defensive ammo, "burnt" for no other reason than to be absolutely sure that those guns would function.
How much is your life worth? Or your family's?