Mine was my Marauder Pistol. Purchased directly from Crosman. In 30 yards with zero wind (indoors) it would only consistently do 1-3/4" or so.
I started to tell myself that would be OK for my 10 yard pesting duty, but then I realized my not-particularly-accurate Summit NP2 would also shoot about that well. I put it aside out of frustration (Crosman was willing to help, but I didn't want the shipping hassle) and was going to put it aside for awhile to do some soul-searching as to whether I like the gun well enough to pony up $150 for an aftermarket barrel for it. Then, a kind fellow airgunner offered me his old (but good) OEM barrel. I swapped them out, and it is like a new gun.
The moral of the story is that Crosman can make a good barrel, but they don't always. Be ready to follow up on that if you buy a Crosman without a Walther barrel. (my 2300T pistol is quite nice)