what you have is fine. As for killing a really big bear with a bow the answer is no. My first year out with a bow I wussed out with the bow if you have never killed anything with a bow you doubt yourself. Wuss out on a huge bear that was 450 in the spring I think what words were " there is no way in F@#* that I'am shooting that with this" Be sure of yourself and you can do it. every thing is 95% mental 1% the bow and 4% luck