I had not even thought about shooting the .40 cal bullets but now you have put a bug in my ear. I have a fair selection of all lead .40 cal bullets for my 40-65 "bullalo rifle" that I guess might just be a good elk bullet if they will fly decent out of my Omega. I guess I will have to order some of the "blue sabots" and try them. Not sure about the diameter however and the possiblity of getting them loaded. They are pretty long also; maybe too long for the sabots?