Indeed it did. But today as the smoke is gone (dieseling) it drop to 850 fps. But the grouping improved. I expect speed to drop more and stabilise around 830 fps.It is a nice, powerfull and accurate rifle.Today I tested JSB stability on wind.110 yards at variable side wind up to 10 mph, and hit target 7"x7" each time. (3x zoom on scope, zeroed at 54 yards)I think I found pellet for this rifle.Terminal ballistic I will not do. Air rifle hunting is not legal in Croatia.But I can say that this rifle completly demolished brand new standard air rifle metal target holder, with pellet trap, at 54 yards distance. With about 50 pellets.If I live in USA, I would took a look on H&N Baracuda Hunter Extreme. I have some feeling that that combination might be good. I might buy 1 box for testing only.
...I use a thin soft rope and attach small cotton rag in a middle of it....
BTW I mentioned a lot of good points about this rifle. What about bad ones.Are your loud? Today at shooting range, guys were thinking I am shooting fancy .22 LR at 110 yards. They had a big question mark above their head when I shot, broke it and place the pellet inside. And I liked it. Plastic trigger I don't touch. I guess warranty might be needed. I don't want someone say it broke because of misadjustement. Nooo, it broke because it is made from plastic. That is the reason.
The accuracy of mine has dropped somewhat, not sure if it is because I am using a new tin of pellets, or my stability, or the gun. In any case I plan to clean the barrel for the first time to see if that can bring the accuracy back