Plus at least 10 30 round (legalities permitting) metal magazines. Duramag or C-mag, or new GI mags. Then get small amounts of 55gr (M193), 62gr (M855), a cheap 223, and maybe some 77gr expensive stuff. See what the rifle prefers to shoot. Mine has half the group size with M855 than it does with M193, annoyingly. It's been 100% reliable with everything except some not-in-spec reloads, but that's a long story.