Alright, I finally got a chance to test fire mine and it's not what I was expecting. I got A LOT of misfires, failures to feed, failures to eject and three or four stuck cases. I wasn't a happy camper! I couldn't seriously test its accuracy, so I only did it informally while function testing it.
I first tried Lapua SK ammo, which shoots very nicely in all my other 22's, but I think I got more than a dozen misfires with it. After checking the fired cases I saw very light firing pin marks, which I'm sure cause the misfires. Accuracy at about 20 mts resting the rifle on a tripod while standing was about 3 to 3.5 inches for 5 shots with open sights. I can usually do much better than that.
I then tried a few rounds of Winchester 555 and they fired ok. However I didn't shoot many of them, because they were too noisy and I wanted to keep noise to a minimum possible (I was at my deer hunting spot and deer season opens next Saturday). I didn't try enough of these rounds to actually form an opinion on their performance.
Third and last came the Winchester Wildcat. This is bottom drawer ammo which performs accordingly. However, I didn't expect too may problems in a quality bolt action rifle, but... This ammo gave me a few misrifes, failures to feed (mostly when not working the bolt quickly enough, but some even when working the bolt properly), and worst of all 3 or 4 stuck cases. The first one came out after I hit the case in the chamber with the firing pin a second time, but the second one was much more difficult to pull out. Finally, the last one was so hard to pull out I just stopped shooting the rifle for the day.
Now, Here's what I found during inspection while cleaning the rifle:
1.- This rifle has Controlled Round Feed! The problem with mine is that the extractors were not letting the rounds completely slide under them when pushing them out of the mag and into the chamber. That gave me the failures to feed, because the rounds were too canted. It happened every single time the round did not slide fully under the extractors. It also happened whether I worked the bolt quickly of slower.
2.- This rifle does seem to have a tight chamber, as I had previously mentioned. That is probably what gave me the stuck cases with the cheaper ammo.
3.- The firing pin was not protruding enough to firmly strike the chambered rounds. This is most likely the reason for the many misfires I got.
One last thing that really surprised me happened while cleaning. I know we don't really need to clean the barrels on 22's, at least not very often. However, since this was a brand new rifle (or at least I hope it was), I decided to clean the barrel to give it a better chance next time out. Also to allow the barrel to foul with the ammo I'll be shooting in it. The thing is that I pushed a small chip of metal out of the barrel while cleaning it. I don't know where the heck that came from, but if it was in there all alone that would explain the not so wonderful accuracy at 20 mt that I got with the Lapua ammo.
Oh, and two more observations. I found the rifle was very dirty, considering I don't think I even put 100 rounds through it. That is why I said I hope it was new, cause it certainly had been fired before. The bolt head had a little carbon deposit over its top, the extractor channels had a bunch of carbon residue as did the inside of the bolt, specially where the main spring is. I don't think carbon fowling from a few dozen rounds can even get there. Second, I tried a 10 round extra mag I bought for it and I noticed that the tip of the top round could move from side to side. so they weren't always pointing straight at the chamber. However, the crooked ones never gave me a failure to feed, at least none that I noticed.
Anyways, I have now corrected the firing pin protruding problem, I have cleaned, radiused and polished the extractors and thoroughly cleaned the bolt and barrel. Now the only problem is that with deer season starting next week, it'll probably be weeks before I can shoot this rifle again. I'll post back with the results when I do get to test it again. Hopefully my mods have corrected the annoying problems I experienced the first time out. We'll see...