My solution to "do you have any ammo to sell/give me?", is "Nope, sorry". None of my shooting friends know my inventory and while I'm not stingy, I will share components, reloads are very personal (as in I don't use anyone else's reloads and I don't allow anyone to use mine)...

A friend told me he just got a new 40 S&W, so I gave him 200+ once fired cases and about 3/4 lb of powder. I don't mind sharing, I just have a thing about handloads...