I have the Ruger RPR in .308. Great rifle! This new one in .22LR sure looks interesting. The price is quite attractive too. I don't understand why they went to an M-Lok handguard on the .22 when they use a Keymod on the centerfire. If this .22 version is supposed to be a trainer for the centerfire, it would have been nice if you could have used the same accessory mounting hardware on it. The included 30MOA picatinny rail is a great idea to extend the range of this .22 target rifle - with the drop of .22LR ammo, you can run out of scope adjustment pretty quickly. The heavy threaded barrel is perfect. And the trigger - if it's as good as the one on the centerfire RPR - will be a welcome addition for a .22. I'm a little disappointed to see that the chassis is plastic and the buttstock is molded in. I suppose you don't need a metal chassis for a .22, but it would have been nice to have the buttstock use a standard AR attachment like the centerfire RPR. Hard to tell just by looking if that buttstock will end up being solid or flimsy. If it's flimsy, an AR attachment would have allowed you to get a better replacement. But as it is, I don't see any stock upgrade path
But overall, this looks like a very solid offering in the .22 rifle market. If I had not just bought a CZ, I would probably be drooling all over this new Ruger. It's a definite possibility that I may get one anyway. I'd have to see it in person first though. Just because it looks (kind of) like it's big brother centerfire RPR does not mean it will necessarily perform at that level. But I certainly hope that it does.
(Rifles not to same scale in picture - for general comparison only)