While I agree (my JW15 with the right ammo will put them all in the same ragged hole) it took three rifles (through warranty) to get one with a straight barrel. The first two I had, I had to drift the rear sights just about out the left side of the barrel to hit zero, likewise, with a scope, there was not enough windage adjustment available. They also need tuning; stock bedding, smoothing of sharp edges. I won our club's last cross country shoot scope class, with my JW and a cheap Tasco pronghorn 3 x 9 scope.
A better bet (I have one of these too) is the Scorpio .22. Much smoother, much nicer finish, and about the same price as the JW. Their barrels need bedded too. SFRC has them on for $200.00:
CZ is still the best bet, but it will be about 3 x the price of the scorpio. I have a CZ in .17 HMR, but my plan is to upgrade the JW to a CZ in the next year or so for no good reason other than it's not a CZ. LOL