With manufacturing getting better and better, accuracy will only get better along with it. Rifle and bullet combinations that produce minute-of-angle (MOA) accuracy or better used to be hard to find. Nowadays, MOA rifles are pretty common if you spend the money. I've got a 5 yr old .308 tactical rifle that shoots about 1/2 MOA, and my wife has an AR10 variant in .308 that she just bought that will just about use the same hole at 50 yards. And, that gun is a semi-auto!
Sorry, meant to reply and accidentally sent the same message as before. I meant to say that with the advent of DARPA’s self-guided, mid-flight changing bullets, sniping is going to get an epic upgrade.