Bows have more energy and transfer it more efficiently than ever before. Arrows have been beefed up and slimmed down for better penetration. Lastly, broadhead designs, both fixed and mechanical, have been improved with sharpening expertise that forces you to be extra careful when attaching broadheads to the end of your arrows. In short, a new compound bow set to 60 pounds and matched correctly to a quality arrow, and broadhead setup will cleanly take an elk with a double-lung hit. Heck, I know of several bowhunters who have taken elk with bows dialed back to 50 pounds. However, setting aside that simplistic overview, there are some specifics to consider as you look at long sticks and sharp points for your bow. First, get to know that that burly bull you hope to hurl projectiles at like your prehistoric ancestors.