25,000 rounds isn't near enough for the zombie apocalypse...You also need a few other specialized tools, being as the only way to sure fire kill a zombie is to kill the brain.....Unless those 25000 rounds are 12 ga flechettes and you have this
That thing is just insane!!!!
And this would come in handy too
Oh, an if the zombie apocalypse does come, get one of these as well
Oh, the middle pic is a Alexander Arms .50 Beowulf, google it, if you're a gun nut, well, it will make funny things happen in your shorts.