I used the search function but couldn't find anything that answered my question (or I don't know the correct combo of words to search)...

Anyways, I recently acquired an AR-15 with an 18" barrel, Its a DMR build and was thinking of swapping out the Bushmaster barrel for a Noveske. Believing that I'll get better accuracy with the Noveske barrel...

But I took it out as is and was pretty much shooting 1 MOA with LC surplus ammo, there were definitely some outliers which could have been me (most likely) or the ammo. Not a huge variant but like 3 MOA

I started thinking if it aint' broke don't fix it.. Was wondering if or what I would gain by changing out the Bushmaster for a Noveske?

TIA!