See I am going to have to disagree with TATER. I have an SPS Tactical AAC-SD and it is still MOA or slightly sub MOA at 600 with my hand loads. I have owned two of these and both are great shooters. If you change the barrel, go through the works with lapping and truing it. I have a custom 300WM that was built as a bench rest rifle by one of my close friends, it is better than 1/2 MOA at longer ranges than 600 yards...
" The strongest reason for the people to retain the right to
keep and bear arms is, as a last resort, to protect
themselves against tyranny in Government...." - Thomas Jefferson