Where are you seeing they purchased 700k rounds?IRS has purchased over 700,000 rounds of ammo. Also, why can the IRS use deadly force but our law enforcement is frowned upon for doing it?
I think you are reading too much into the job description. I took it as them letting potential applicants know this is a dangerous job that may require them to use deadly force, not come join the IRS so you can kill people for not paying their taxes.