I was wondering which kind of ammo is best for my AR and which I should stay away from? When I read the manual for my DPMS it said it only recommends brass casing ammo. Can I still use the cheaper ammo or should I go ahead and get the more expensive brass? Im asking because I'm about to stock up and want to get the most for my money.. but I don't want to fuck up my gun by shooting the wrong stuff.
2003 Silverado - 4.3L (daily driver)
1990 Notchback - 5.0L
1990 Notchback - 2.3L (5.0 project)
1967 Fastback - 302