What gun are you shooting please . Try the Air Arms they seam to handle more speed better than the JSBs do , then try the Corpsman Benji Domes this pellet also likes to go fast .
I have a Bullboss .25.I don't think I want to replace em because the jsb's 33.94 are dead on with my rifle right now. I guess I got to pony up more and snag more tins when they show up lol