I have shot the 270 Bee for a lot of years. have gone through half a dozen of them. They are extremely flat, and easy to reload.There is nothing in North America that I would back down from with it. I am saving the pennies to get another Mark V for next season. The 270 Bee has a 400+ fps advantage over the 270 Winchester with a good handload. My 140's are cruising across the chrony at a little better than 3400 fps. The 150's are at 3300. I have never had to chase anything that I have shot with it, be it bear elk moose or gopher. It plain works, and is pleasant to fire.