I learned a long time ago speed kills, but when the velocity drops off at some range you won't have the insurance of large holes, I have always drove my muzzleloaders fast and most have been bang flops except with hard bullets, same goes with my 243 , the harder bullets don't create the destruction I like and most always make 2 holes, I consider that lost energy that I prefer to get dumped into the animal. A bullet isn't like a broadhead and a pass through is preferred. pouring the heart and lungs out when you open them up means they didn't travel much after the bang. More ways than 1 to kill a deer and pick a direction to go and perfect it for your own satisfaction. in the end you are the only 1 you need to impress.