As nobody else has replied I will give my thoughts on this after having the RPR(rimfire) for just over three weeks. For me the angle of worthy or value to the option may be different due to circumstances I got the rifle. I was given this rifle as a gift from my girlfriend and her kids as a fathers day gift, to some this may send you running for the hills but for me it was very special that they found out that I had interest in it and purchased it for me for fathers day. This means I expect to keep this rifle forever.
Honestly the rifle has a lot to like, the adjustable LOP/Cheek, the chassis design (industry standard AR grip and basic AR style safety), the over-sized bolt knob/threaded bolt handle, 30 MOA optic rail, and the trigger is very good for a factory stock rimfire trigger. The only thing that is really lacking is the accuracy. In my case the rifle is worth the investment and is worthy of the Lilja barrel once they are available and accuracy reports are in on the barrel.
For what it is worth I have had confirmation that Feddersen will be producing a replacement barrel for the RPR, I am waiting on his barrel as my experience with the Feddersen barrels in 10/22's is amazing.
If you haven't handled or shot one of the RPR's I would suggest checking them out, the trigger on mine with a bit of polishing, lube, shims and spring replacements turned out to be a very nice trigger (no trigger gauge available to measure pull weight, but it is very comfortable and similar pull weight to a couple of 1.5# triggers I have.)
With all of that said, I am curious about long-term reports regarding magazine and feeding/extraction issues. I am currently using TandemKross magazine bodies as they fit tight and hold everything were it needs to be, the BX15 out of the box fed fine but would not strip the last round out of the mag. I did not use that mag more than a couple of times and could see it loosening up and beginning to fail to feed with the bullet nose diving as others have reported.
