Who made your "cheap ammo"? 62gr. should be heavy enough to group well within 2". But "pie-plate" accuracy sounds like Wolf or steel-cased crap. My bull barreled RRA doesn't group well with factory 55 gr. Remington FMJ's, but it definately keeps them within 2" at 100 yds. Moving up to 68 and 69gr. reloads tightens it up to well under an inch. The twist on that gun is 1:8". Also, is that cheap ammo labelled 5.56 or .223?
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