@remarkable, maybe my first post didn't accurately describe my issue. It does appear that it is normal that the SBE carriers are off-center slighty in the loading port (closer to the right side) when looking at the bottom of the gun, but my carrier latch is visibly twisted a few degrees the right, and when the bolt is closed, the right edge of the carrier fork comes about 1/16 from the right side of the receiver near the magazine tube (1st pic). I found sometimes it would actually lightly drag the right side of the receiver when loading a shell, and if you push it straight down, the lip on the carrier usually hits the edge of the bolt grove, not fully going down far enough to load a shell, unless you push it towards the left slightly. When the bolt is locked back it it looks less twisted, just like the picture you showed of the SBE3. I took the trigger assembly out, and I could visibly see that the latch is not parallel to the trigger housing. I appreciate you comparing to your inventory, and I'll post back here the outcome from Benelli.