Ammo is getting so scarce..........

 This morning I lucked out and was able to buy two boxes of ammo. I  placed the boxes on the front seat and headed back home, but stopped at a gas station where a  drop-dead gorgeous blonde in a short skirt was filling up her car at the next  pump. She glanced at the two boxes of ammo, bent over and leaned in my  passenger window, and said in a sexy voice, "I'm a big believer in the bartering system, old fella.   Would you be interested in trading sex for ammo?"

I thought for a few seconds and asked,  "What kind of ammo 'ya got?"