To the best of my knowledge there are no current restrictions on shipping ammo[small arms i.e. 50BMG or less] to Nevada.
I've checked several ammo suppliers and came up with a list that there restrictions on shipping to several states and will use that for my future ammo sales.
Here's my list: Alaska, Hawaii, Conn., Illinois, N.J., Wash DC, Calif. Mass. and N.Y.
Some you can such as Illinois BUT the buyer has to have a FOID card and I'm not going to decide if its legitimate or not.