To answer your question bantamax, no 40 yards is not to far for this #7 load. I'll try to explain. From what I have read, you go up 2 sizes from hevi-shot to get it's lead equivalent as for as energy. I could do all the calculations to get an exact answer but no need. So that's like saying one of my #7 pellets has the same energy as a #5 lead pellet. Dead turkey. Now worst case scenario let say it has the same energy as a #6 lead pellet, still dead turkey. Also the smaller the shot, the easier it is to penetrate. This is just what I have concluded and believe from research.