HW100 or Air Arms S510.
Edge to HW100. I have two, one with titanium cylinder, and one with aluminum cylinder. I get 8X14 shots per fill at 850 FPS in 177. Crazy accurate, and crazy good trigger. HW has the best magazine that is easy to load, and it can't double feed. Pretty easy to rebuild by replacing orings, so it will last generations. Bullet proof design.