I found the load for my smith and wesson 19 and 28. It shoots extremely well. I cast my own bullets for them. 158gr semi wad cutter. shooting 3.2 grs of bulls eye. It is dirty powder but shoots really accurate for the two of them. My Glock 23 I have the load for that one now. I am working on the Glock 20 now. For bowling pins you really want a flat nose or a large surface striking the pin bowling pin.