Things I liked:Well built seal. Bit tight getting it on. Install like you put a tire on a rim. tiny bits at a time all the way around. Nice tight fit though both on piston and in chamber. Things I would have changed:Didn't really need all the packaging. An envelope would have done the job. What others should know:Never dry fire these things. Flattened my factory one out and made seal edge rough. This new seal brought accuracy right back where it should have been in my Trail NP.
Things I liked:Not shot at paper but a target that I plink at off my deck all the time. I am 10 feet up in the air and the target is 20 yards away. Super hitting power. Knocks target around a lot. Shoot right, spins CCW, shoot left, spins CW. 6 inch target and I can hit far right or far left, accurate enough for me Tight fitting in my Trail NP. I have to assume it is biting into the rifling really well. Things I would have changed:Nothing What others should know:Didn't think about what shipping could do to the rifling riding surfaces of pellets until I read a few reviews on this site. Packing was incredible on the 4 tins of pellets I bought. The tight fit in the barrel, proves it was effective. Thanks PA
Things I liked:The way PA ships pellets. The energy downrange. Hard hitting pellets What others should know:Tight fit in the barrel. Accurate enough for me. Not tested on paper. Big reaction of target from heavy pellet.