With a well placed shot why not? 41 isnt as much insurance as 45, or 50 or whatever, but accuracy is everything in the end. The Native Americans did the job with far less high tech setups. If you use the 'search' function at the top of the page you'll get at least a dozen threads on this same topic. Most people will give you a yes, but your broadhead must be razor sharp and your shot must hit the heart or lungs cleanly. If you feel confident in your abilities go for it. If 20 yds is too far, make it 17, or 15, or whatever works best for you. You get the drift? More opinions will follow...