Let's say you have a specific and limited budget to stockpile ammo before an imminent alien descension from outer space and hostile takeover attempt of your home. Since they are aliens relatively new to planet invasions, they haven't planned properly and their weapons are very conventional. You can successfully prevent them from getting in your home with small arms and you hope some of your captured neighbors will be able to convince them that you shouldn't be messed with, but you don't know how many days that will take.
Now your budget only allowed you to stockpile either 10,000 rounds of something similar in quality to Wolf ammo OR about 6,000 rounds of something like Federal XM193.
I'm undecided which I would want and since I'm very worried about the likelyhood of such an incident, I'm looking for feedback?