Failed to mention magazines / clips. It's great that you have 1 EXTRA mag that came with your favorite deer rifle, B-U-T a total of 2 mags with only 5 rounds each isn't going to last long until you hear "click" and stop shooting to reload them. If you can't get oversize mags, get a sack full of the "regular" ones.
BFLR
At which point you should now have ten new rifles and the ammo that came with them.