I bought a used 1911 Norinco and two new ones. The used one has a recoil buffer and a trigger job. All else is stock and it is very accurate. In fact, I am going to put adjustable target sights on it for target shootng.
A friend shot one of the new ones and concluded it shoots better than his S & W 52. And we have yet to do any load development.
I don't doubt that some are better than others. That is to be expected on production guns that are sold without any accuracy guarantee.
I have 30+ years of pistol shooting experience (all bullseye type shooting). I know that it takes time, practice and coaching to be able to shoot well. If newbies and blasters are buying these pistols, their comments about accuracy have to be taken with a grain of salt.
I have just about finished a load delvelopment project for my 38 revolver and about to start a project for the 1911. I tested 3 bullets and two powders. At 20 yards each bullet and powder combimation had loads that got 3"+ groups and 2" groups or a bit better.
If a shooter did not handload (and develop a load) he woud have to try different brands of ammo to see what the gun liked - assuming he shot well enough to see the difference.
I wish I had access to a Ransom rest, so some meaningful comparisons could be posted.
Here are two targets from my load development project for my 38 revolver (a 357 Smith). Same bullet. Same powder. 3.2 g vs. 4 gr. Might a shooter only shooting the poor load conclude the gun is no good?