well I look at other criteria, will 550 ft. lbs of ke kill a deer, yep, but the terrain where I hunt they will be diffacult to say the least to find, I've had more than a few DRT deer that took 20-30 min to locate, just due to the fact that once you get from point A, to almost point b, nothing looks like ya think it should, even though I carefully check the terrain, pick out distinct landmarks, its still diffacult. I admit, most longrange kills are DRT, even with meocre hits, but once in a while you'll get one that makes the 10 second sprint.
A 223, 68 gr hp had 547 ft/lbs of energy remaining at 400 yards, so is it a 400 yard deer rifle?
RR