I'm wondering what you mean by accuracy.
For some folks keeping them on a pie plate at 100 yds is plenty accurate enuff--that will put venison on the table in the woods I hunt here in the PNW.
I've owned several handirifles most of them were broke in pretty good when I got them. I'd say 3 inches at 100 is my guess at the average, from a rest using iron sights and factory ammo. The three new ones I bought were all 1-inch rifles after I found the ammo they liked; handloading helps.
The 17 HMR I bought new is a tack driver; my 22 mag ultralight youth is also very accurate, for a 22 mag.
Many will shoot MOA right out of the box. A very few will need to go back to the factory for rework before they will function properly but that's par for the course with any mass-produced item.
It's my opinion that VERY few cannot be tuned to shoot MOA or better.