Biermiester,....I think you'll probably be ok, as long as the crescent you're seeing in those two chambers isn't that wide, or should I say doesn't appear above the top of the lands that far. There's no way to correct that when it's occuring in just a few chambers. Those two chambers must have been bored slightly off alignment . If you haven't purchased it yet,...maybe the dealer will discount it because if this,....but if you have already purchased it,...see how it shoots,.....note when you're firing those chambers, and see if the results are printing on the target different than the other chambers. Know what I mean? They might not,.....and you'll be fine. But if you're gettin flyers from those chambers,...well, you could always buy an Uberti cylinder,...they'll fit and work fine in the ASP. One good thing about the ASP is that they generally have a nice tight barrel groove dia.,..my Euroarms (ASP) '58 Rem .44 has a groove dia of .449.