Quote Originally Posted by FromMyColdDeadHand View Post

Firing line just asks about your ammo, Green Mountian checks it, so I don't think you can even preload your mags.
Yeah you can. They just want to see that you aren't shooting non-jacketed, lead stuff. All you need is to show them the box of ammo. Just save a box of WWB and throw whatever you want into it. I've never had them actually open it to see the rounds unless it was something obscure that they weren't familiar with.