I had an interesting experience with stingers just last week. A buddy had some and was trying them out of his el-cheapo Herbert Schmitt single action and was only hitting the 2x2 foot cardboard target backer about 3 out of 10 times - I blamed the gun. He gave me a handfull and I tried them out of my Ruger Single Six - same results only 3 hits in 2x2 foot square at 20 yds - 2 of which where sideways from tumbling. Then I tried them in my 10/22 - 10 shots in pretty much one slightly enlarged hole - what a difference.