I've been giving some thought to handgun accuracy these past few months, actually many years before now.
The "Standard" test for accuracy was done at 25 yards back in the late 70's when I began handloading. If I recall correctly, any brand name decent gun was expected to shoot a 3" group at 25 yards. It seems that standard has fallen by the wayside. I'll head over to Youtube to watch reviews about various handguns. Once the smoke has cleared, it seems 7 yards is about the limit for the majority of those testing some of the newer handguns. If it will hold a group of less than 2-2.5"s it's deemed awesome. Okay, I get it. The vast majority of those doing the testing never plan on having to shoot it past that distance, even if it's a full sized 1911 or 4" revolver. My 69 year old eyes (with corrective lens) won't allow me to do that even off sandbags these days. I do realize many carry the smaller concealable various 9's and 380 Autos with 3" barrels.
So, what is your acceptable accuracy standard for your CCW handgun? I am fully aware that most self defense encounters take place from point blank point of contact out to around 20 feet. But, there's always exceptions and no guarantees it will.
Murphy