ORIGINAL: ropedawg
i shoot a arrow weighing 20 grains over the 305 number and get 299-300 fps which equal somewhere in the ball park of 64 kenetic energy. i think that isenough kenetic energy that kill in animal in north america.
You couldn't pay me enough to shoot a grizzly with that arrow, at least not without a very good rifle shooter backing me up. Besides, I believe it's illegal on griz most places they're found. I wouldn't even think of using anything less than 700-800 grains out of a 70 lb draw bow. If I was shooting even more draw weight, I'd be using an even heavier arrow. For really big game, I'd want to be around 12-15 grains per lb of draw weight. 5 grains per lb at a Griz! How fast can you run?