I have a Sheridan blue streak in 20 cal. I didn't realize how long I've had the thing until just now, about thirty years or better... Wow, time sure flies when your having fun.. :) It does a wonderful job on rabbits and squirrels. I do highly recommend it..
FWIW, I now have a PCP Daystate Huntsman in .177 and I love the heck out of it......Yes, it and the necessary accessories are expensive but worth every penny.