Just got my second PCP, a 22 caliber Benjamin Cayden. My first was a Origin in 25 caliber, which I've been very happy with. Just spent my first day shooting the new Cayden and it took me by surprise. I ordered a bunch of different pellets and a couple slugs to try. This gun is WAY more picky than my Origin. I haven't played around with the power settings yet, only shooting at max power as the gun came out of the box. I really like the build quality etc, and the trigger is very nice. But I'm surprised by the results of shooting different pellets so far. The gun HATES Crossman Premier HP's, JSB Knockout slugs, FX Hybrid slugs, and H&N barracuda extreme hunters. The only pellets it's grouping well at 30yds is Air Arms heavy 18gr and JSB Hades. I also tried Polymags but they don't cycle in the magazine, I'll have to pick up some shorts when they are back in stock. Also the point of impact varies greatly between the different pellets, much more than different pellets in my Origin. The point of impact variance took me by surprise. I only have experience with my Origin, which keeps everything within 8-10" or so from what it's zero'd with. The Cayden is proving to be much more difficult to test different pellets with. From everything I've read, I was expecting more from it in comparison.
Right now I'm still limited by my hand pump, my compressor is supposed to arrive in a couple of days. Once it arrives it will be much easier to test, but right now I'm frustrated. On a positive note the Buck Rail moderator works really well. I sent one round down range without it and was surprised how loud it was! It is much needed for my backyard shooting. This was all so surprising to me I was wondering if I got a lemon?? Maybe I just got lucky with my Origin? Anyways, just needed to vent!