I just got my .22 cal 2500 Carbine back from PA. Had a minor problem with cycling the magazine. Quick turnaround and the problem appears to be fixed. I think you're going to love shooting the Sumatra. Lots of power and dead on accurate. I'll be taking mine out to the range to do some serious testing soon. Which model did you buy? I've noticed that PA no longer offers the .22 cal Carbine. I asked the techs at PA and John Burroughs why but nobody was sure why.