Like Dan said, my S400E likes the EJ's just fine, they average 873 fps for about 27 fpe. And that's in a .177! Accuracy is excellent, too. Check the Classifieds, that rifle is currently for sale and I included a chrony spreadsheet and graph in my ad. Your is a .22, isn't it? If you want to try some out without having to order a whole tin, let me know, I think I still have some .22 EJ's on hand, I'd be happy to send you some. Later.
Dave