Disclaimer: I'm new. 
I've got a .223 rifle on the way but I won't be set up to load it for a couple months. A local store has a few boxes of Winchester USA ammo for sale and I'm wondering if there is any reason the brass from that ammo might not be suitable for reloading. I'm thinking it would be nice to be able to just go out and shoot when my rifle shows up and then I can keep the brass until I'm set up for re-loading it.

I've got a .223 rifle on the way but I won't be set up to load it for a couple months. A local store has a few boxes of Winchester USA ammo for sale and I'm wondering if there is any reason the brass from that ammo might not be suitable for reloading. I'm thinking it would be nice to be able to just go out and shoot when my rifle shows up and then I can keep the brass until I'm set up for re-loading it.