When I need accuracy from my HK-91 (Centurion 99), I wait a minute or two between shots. But I'd like to have something I don't have to wait for, something that will shoot as good a group rapid fire as slowly, proveded the shooter's on target of course. So do ARs do this better than HKs? Is there one kind of barrel that's better than others at this? Are other guns out there better at this? I wondered if a VEPR II, with the RPK receiver, trunion, and heavy barrel with a chrome lined chamber and bore, which claims to get MOA accuracy, could actually outshoot an AR in rapid fire.