One of the things that bugged me about stock 10-22s is that they have/had a first-shot flyer problem. I analyzed it and discovered that the operating handle was tight in the bolt slot and when used to function the action to load the first round of a new full magazine into the chamber, the handle would bind the firing pin and the drag would often cause squib firing for the first shot of a fresh magazine. Grinding the operating handle a bit would allow it to move without discernable binding and the malady disappeared...just like that!!!
Yes, other mods that help include improving the trigger pull, most easily changed by buying an after-market trigger.
Pillar-bedding helps, but instead of free-floating the barrel, I bedded it with several pounds of uplift near the end of the forend, because the aluminum receiver can't seem to keep the barrel from wandering from inconsistent vibrations, shot to shot.
Yes, other mods that help include improving the trigger pull, most easily changed by buying an after-market trigger.
Pillar-bedding helps, but instead of free-floating the barrel, I bedded it with several pounds of uplift near the end of the forend, because the aluminum receiver can't seem to keep the barrel from wandering from inconsistent vibrations, shot to shot.