Accuracy for me is really (gun control). I found out a long time ago with a center fire rifle that the ammo you use is very important. Factory or hand loads. Once I took up BP I really learned how important it was to be consistant with your measuring and finding the right load. After all we basicly build the cartridge in the rifle and the breech serves as the cartridge. All things being equal I think we all have the same expectations when it comes to accuracy. We all want the bullet to hit what we are aiming at. I think some folks might have a difference of opinion as far asmargin of error is concerned but as long as you can control your rifle or any firearm and make it perform the way you want it to, its accurate.