This one is just too hard to keep quite on. I just couldn't shoot it and then post with the Bison (don't suspect it's a buffalo) like I got it on a hunt....and I like to do that. You want to go primitive but you want to trade for a bow and arrows? I'm not following that too well, but if you're going to borrow I'd borrow a 60-70# bow and sling some 600 grain arrows from it. If you hit shoulder with a 55# bow that "may" shoot 55# at your particular draw length you may not get 3" of penetration. If you hit a rib it may bounce off. Anyway, if you want to shoot it go heavy and get a still shot so you hit vitals and put it down clean. Just my .02 brother