Well guys, I read through this thread a few times now, and the recurring theme seems to be that Crosman is not doing a good job on the barrels on P-Rods. Flaws at the breech, crown, unfinished rifling, which leads to it getting dirty quickly.
My instinct is to return it and get a 1720T or stand by and think about whether I consider it worth another $150 investment.
Concur wholeheartedly regarding what Jason said about inside the muzzle of the barrel. Take a photo, send it to Crosman, have them ship you a new barrel.
There's another option if you're looking for a pistol that is just a pistol, not a mini-carbine. The SPA PP700 pistol has plenty of accuracy for pests. I drilled several sparrows at longer ranges, and took 2 squirrels in rapid succession despite being a single shot. Mine was not pellet sensitive. And at 25 yards I was cutting cloverleafs with 4 pellets. MRodAir sells them.. $200... or buy overseas for equivalent. If you read the last couple pages, Donny (Rallyshark) has a great write-up, and I suspect David (Rocker1) may be selling some aftermarket goodies in the not-too-distant future to spruce it up and make it more hushy.