I would say not. I would still expect at least an 1" to 1.5" at 100 yards with factory plinking ammo. I have two 20" Bushmaster rifles that I bought pre2k. One is my DCM match rifle and the other is your standard 20" Hbar XM15. The DCM gun has a 1X8 barrel free-floated and the XM15 your standard 1X9 Bushmaster barrel. Both guns have turned in groups of 1" with decent factory stuff, but are sub MOA with my match handloads. I would expect yours to do much better with a decent match type load. Something with a 75-77 grain bullet perhaps. My one in nine really liked the Hornady A-Max bullets.