I have been following the site for a couple of months, and just signed on. I inherited a 300 Weatherby Mark V, which is 25 years old. I have tried many rounds and loads. My best is the 150 grain AccuBond with 86 grains of H4831, at about 3380 fps. This deer season that round took my deer, and I let friends use it as well to test it. There were 4 one shot kills at the following yardages: 404, 310, 300, and 160. I really think I'm fine to shoot an elk with that 150 grn AB. What do you folks think?