I haven't had to sign for any of the ammo I've ordered online. It's all been shipped UPS, and while I've been home to receive most of it, they don't require or even request a signature. If no one's home, they leave it on the front step like any other package.
I was at home when I received my ammo that I ordered online. They had me sign, but who knows if I wouldn't have been there. The only other thing I can think of is sometimes they want you to fax them a copy of your ID.
You don’t need a signature when delivered. When you leave your D.L. and signature on file with the company you’re ordering it from. They already have your signature with your D.L. When you fax it them. My neighbor has this done.
I prefer: When ordering from, let’s say, from Cabelas, they don’t accept your D.L and signature on file as confirmation who their selling it to. They put an “adult signature required” sticker on the box. And let UPS confirm the adult, signature for them. That’s how it’s supposed to go.
UPS makes three attempts to deliver your package. That is, if they don’t leave it at your door. After the 3rd attempt, if you do not call them for re-delivery. They will return the package back to the sender. The re-delivery, after the first three delivery attempts is like in baseball. Three attempts and you miss em. You’re out! Back to the dug-out!