I have one in .22. Not powerful mines doing 10.5 with Superdomes. They do live a lot in the shadow of the breakaction 55/60/70. The basic design is very good and the main problem seems to my mind to be the lost volume as the pellet "jumps" from the tap to the barrel. I allso have a 55 in .177. S20 pistol in .177 and a S70 in .22. Very well made and to my mind a brand that didnt deserve to die. Enjoy.