So just came back from a Sunday shoot, the SR-22 was dusting clay pigeons at 240yrds confirmed with a range finder. The SR is absolutely stock with a fixed 4x bushnell, BC 25rnd clip and a Harris bipod, 1500rnds and not a single fail, yet to see a 597 perform that flawlessly and hitting clay at 240 consistently with a stock 22 seems like good accuracy to me. Could never convince me to buy a 597 over a 10/22, just look at the sticky's at the top of the rimfire section speaks for itself. For a semi 22 you could chance getting a lemon 597 or just go with the tried tested and true 10/22, but the choice is all your, just my 2 cents.
ET