There is someone sending unrequested onto ammo with ridiculously low price. I called the number and hung up and someone called me back right away. I don’t know any store calling back dropped calls so this is most likely scam.

There are many scams out there. I also ran across a few scam sites looking for payment via Bitcoin, wire, Venmo, etc..

Sending unrequested what onto ammo?

It is not advisable to prank call suspicious numbers