Yah, there don't seem to be that many around. And I believe the company in Texas folded and made some enemies on the way down.
Well, I got the Volquartsen Exact Edge extractor into my R22 now. I've taken it out twice now since getting that upgrade done. It is making a huge difference. it is extracting very reliably now. The gun just got fun again!
The gun still likes hot ammo, but at least I can use something hot and cheap now, like Remington Cyclone. That is what I have been using the last couple of weeks. It seemed a bit dumb using premium .22LR ammo just for blasting out the rounds with 25 round mags.
The gun is big-time accurate. With a barrel that heavy, it is going to be as accurate as the ammo will let it be. Gotta love it. With the red-dot scope I can pound out all 25 rounds into a coffee cup-sized circle at pistol range distances (up to 25m) in just a few seconds (..hence the need for the cheap ammo...

). If you slow-fire it, you can get that down to loonie sized groups. With the bipod? Fuggedaboutit. Hugely accurate this R22.
I haven't really tried long range (in .22LR terms that is... 50 to 100m) with this gun much, but I'm sure it would work well. I've got some different kinds of ammo to try out: Green tags, more Stingers, etc.
I've also figured out how to pop the bolt out of the gun so I can clean it properly. Just take out the plastic spacer that sits behind the bolt - push the bolt all the way back and then gently pry it up with a little screw driver (or whatever). Works great. To get it back in you sit the spring/charging handle assembly into it's little socket, then push it all the way back so it can't go any further. Set the bolt in there on an angle and just push it into place when the spring/handle is as far back as it will go.
I was regretting my purchase for awhile, but now that I've got the new extractor and can clean the gun properly, the functionality of the gun has gone up to at least the level of any 10/22 or 597.