Thanks guys. I don't think it is a pellet issue. Been sharing the same CPHP batch with the Cat. The barrel closing seems very precise--better than the NP Trail in 22, which outshoots it by miles. I hit the barrel with dry swabs on occasion and have found nothing to be alarmed by. Latest investigation was yet another change of scope: BSA Essential 3-9 X 40 came off and the "stock issue" Center Point 3-9 X 32 (OK, joke scope, but what the piece comes with) went on and everything that comes loose got tightened. In fact I did an all around scope mount tightening on the other two rifles. Of course that good deed went punished and I had to chase all of them a little. Ah, the wisdom of "if it ain't broke, don't fix it." The Cat and the Trail got back to nice shooting, but the Nitro Venom remained vertically all over the map. Darn thing gave me maybe one ringer through the center diamond, and then it is back to Loony Tunes. Of course, then I am wondering if I have offended the Great Marksman in the Sky and I am doomed to make shotgun patterns one pellet at a time for eternity. So I go get the Big Cat: A couple quick dead on shots, a pause and I notice a horse fly on my back stop. One shot and the the huge fly drops. Life is good and spiritual high fives to the Big Guy. The Venom is going back to Bloomfield.