I use Noveske for SBR's. Why not for longer ones? Most of my longer ones use something custom or specific, like a 20" 6.5G Satern bbl. or a 16" Lilja recce rifle barrel. The longer ones are more or less made to be tack drivers. I prefer cut rifle for precision and if you can get a Satern that'll fit, if they have an over -run, GET IT! You won't be sorry, promise. Lilja is known to be among the best button rifled barrels on the market and are pretty quick. Krieger is another I'd look at.
Noveske makes great SBR barrels, they're heavy duty and accurate. But they make great barrels in general, and they usually come with a pin on gas block and a matched bolt, both big pluses. They function great without gimmicks, a JP Ent. FMOS carrier is nice but not necessary. All of my centerfire SBR's use Noveske barrels and they're all right around 1MOA. 5.56, .300BLK, doesn't matter. None I have are sub-MOA consistently but none shoot much greater than that with the right ammo either.
LMT makes a decent chrome lined barrel too. Their basic 14.5 M4 barrel, I have two LMT M4's, they are around 1-1.5MOA and for the cost not bad. The LMT M4 is identical to the military M4 but a little higher quality IMO/E