Is this about handguns you cant shoot well or just bad handguns?
Back when I was young and didn't know any better I bought a Lorcin 9mm and groups with that thing looked like a shotgun pattern. I only bought the gun because it was a cheap way to get into centerfire handguns, I didn't keep it very long.
The other gun I never had good luck with was a Remington 522 semi auto .22LR, I couldn't get that thing to get good groups no matter what ammo we tried. I was glad when my wife decided she wanted to sell the gun(it was her's)and buy a 10/22 like I wanted her to in the first place.
I had a Kahr CM9 that I shot a lot but never shot well at all, so I got rid of it.
I now carry a J-frame as my BUG (642CT) which I shot tons better right off the bat than I ever shot the Kahr, even when not using the laser grip, and with the 135gr +P ammo.
Kel-Tec PF9. When it feels like working it shoots reasonably well... but that gun is Mayor of Stoppage-ville. I can't get hits if it won't go bang.
About fifteen years ago, I scored an early Colt Commander in .38 Super and was all set to carry that thing until the end of time. Took it to the range and it took me three magazines to get it on paper at twenty-five yards. I was bitterly disappointed. The funny part was, I've never had that problem with any other pistol.
Early Colt supers had jacked up headspace. A new barrel will fix it, and produce a remarkably accurate gun.
Ignore Alien Orders
A 1973 Detective special with a 2" barrel. At 7 yards I couldn't
even hit paper! I would take six shots and look at the target then
just look at the gun like WTF! I shot a box of 50 with it and never really
shot what would be considered a group. The gun was re-blued or something
I'm not real informed about refurbing old pistols but this gun had a new "finish"
that is so thick that it filled in half of the Colt logo so the barrel may have been
messed up.