Thanks for the info folks.
I have empty .308 mags and an ammo can full of .308 rounds.
After reading this post I think I'll make some room in the ammo can by loading the mags and save some space.
“A free people ought not only to be armed and disciplined, but they should have sufficient arms and ammunition to maintain a status of independence from any who might attempt to abuse them, which would include their own government.” ~George Washington
US Coast Guard 76-86 Semper Paratus