I recently bought an Olympic Plinker and had a chance to give it a quick shakedown at Campybob's BulletFest last weekend. Ran about 120 rounds through it and brought my new Bushmaster carbine along for comparison (only ran about 80 rounds through that). Ammo used was Barnaul 62 gr. FMJ, mags were USGI 20's and 30's.
The Olympic Plinker performed flawlessly for all intents and purposes. I had once incident where I didn't seat the mag fully so the bolt failed to strip off a round from the mag. Slow, aimed firing and ripping of a 30-round mag as fast as I could produced no FTE/FTF/jamming problems that seem to be common with the tighter Oly chambers and lacquered Russin ammo. Color me happy. (The Bushmaster performed flawlessly as well - but I guess that's to be expected)
I didn't get a chance to test out the accuracy as all we really needed was minute-of-washing-machine, -microwave oven and -CPU box accuracy. But I'm guessing that it'll shoot fine.
The finish of the Plinker is different - with a rough texture, which is pretty much the only thing that irks me some, but for the price, I'm VERY happy with the Plinker. Just FYI, my AR collection consists of 2 Bushmaster 16" carbines, a DPMS free-float carbine and the Olympic Plinker.