I’ve used stingers but never found them very accurate at anything other than short range. I’ve shot rats and squirrels under feeders and they work well when they connect. I also used the Winchester xpediters. They’re very similar to stingers, the early ones were 29 grain and faster than stingers, later ones were 32 grain with the same specs as stingers. They also had the longer silver case like a stinger, but they had a crimp half way down the case.