Depends on what the handguns intended purpose is and taking in to account my realistic expectations base on what I know about the company who made it and the typical quality of the offering.. With my snubbys, I am happy with a fist sized group at 10 yards. For most of my full size semi auto pistols I expect double that range, same group size. With my 1911s and 10mm EAA Witness Match Elite I'd like a fist size group at at least 25 yards, preferably 50. same thing with my 686, match champion, model 29, 629, Redhawk 44, Raging bull 454 ect.
With my Dan Wesson 445 SM, and my DW 357 max, and Ruger 357 max, 500 mag smith, blackhawk hunter 41 mag, Desert Eagle 50 and my 500 mag and 475 Linebaugh BFRs I want a fist at 100.
With my 460 S&W, and my TC Encore pistol (various barrels), it bothers me I can't make them all clover leaf at 100.... these are also the only handguns I use a bipod or sand bag pistol rest with. Its all relative.