So I semi-screwed up in my haste to buy an inexpensive barrel assembly for my newest AR build. I did not realize that the barrel I was ordering was 223 and not 5.56. My preference is that it's 5.56 just because I know it'll safely eat more kinds of ammo. This is not going to be a target rifle so the minor loss of accuracy that might happen is not a real concern. The good thing is that this isn't a chrome lined barrel, just straight up chromemoly so no issue there. My question is: Can a good gunsmith ream the 223 chamber to 5.56 or wylde so it's safe to shoot 5.56 without any issue?