Sounds like you are not doing a lot of shooting. Between load development for multiple rifles and competitions of various sorts many here would burn through that stash in a couple months.
Haha, that may be true by some standards. I shoot 100rnds of BR quality across wind flags every week and I maintain a supply to support that for 3 years if everything dries up. Ive not had to go more than a year without supplies ever, but I'm also not beholden to a single brand or type of component and will switch as needed.
That said, doesn't change my point. It's rude to empty out a store and create a shortage for others.