One of the first hickory selfbows I ever built pulled about 55#@26". I had to aim a 27", 525-ish grain arrow in the trees to hit a target at fifty yards. Last week, I tillered out an Imperial (composite D/R longbow) with some carbon in the limbs that pulls 38#@31". With it, I only have to aim the full-length, 500 gr carbon arrow about 20" over to hit my target at fifty yards. Oh, and I shot the hickory stick split-finger and the Imperial 3-under! Which would you say would be more lethal?
Draw weight is a very poor measure of performance. Draw length, bow design, shooter input, and about a hundred other details come into play. I would feel more comfortable hunting local whitetail with this little composite bow, and would never suggest that 55# hickory bow would be enough for anything bigger than a groundhog, let alone moose. However, I've seen some modern carbon-limb recurves at 50-55# that put out as much power as some of my early 70# straight limb composite bows, and those things had some thump to them. Some of Clay Haye's videos have high-performance selfbows that are faster than some composite bows. Hard to really compare lethality based on draw weight without the other details included.