When I say .22LR semi-auto rifle, what immediately comes to mind? The Ruger 10/22, right? Over the last 60 years, Ruger has cornered the market on semi-auto .22LR rifles. There’s a reason they come to mind first; they are great guns. But the 10/22 is not the only .22LR semi-auto rifle on the market. Today we will look at another contender in that category, the Remington 597.