I have a stock 10/22 with the 20" hammer forged (spiral) barrel, laminated stock, and a decent 2-7x scope. When it was still young, I noticed that every time I took the stock off to clean oil, and remount it, it shot to a different point. Even using an inch-pound torque wrench on that stupid single screw resulted in vertical stringing. I finally solved this by playing with different thickness washers between the bottom of the receiver and the stock, until the barrel was "floated" free of the stock. To keep the bbl from contacting the stock side-to-side, I stuck a strip of thin, very porous foam between the bbl and the wood at the tip of the stock. The result is 3/4" 10 shot groups at 50 yards with Federal Classics, and 1/2" with Fed Gold Match. Cost 25 cents for the array of washers, and a little slice of foam from when I cut out the lining of a Pelican rifle case to fit a 22-250.
Oh, almost forgot, paid a gunsmith $30 to clean up and lighten the trigger.