First off, it is a little ridiculas to establish a set distance at which one should shoot. I know guys who are more effective at 50 yards than others are at 20. Each individual hunter has to establish their own personal effective shooting range. Secondly, an elk can move at twenty yards just as it can at 60 and effect shot placement either way. A wary deer can jump the string at 20 yards and cause a miss all togather. If I shouldn't shoot at 60 yards because the critter may move, then I shouldn't shoot at any range because the critter could move. I have seen elk killed with a rifle at over 700 yards. Long range shooting is a tool than can increase hunter opportunities. I did not come on here to argue about range shooting, I just wanted an opinion on penetration at a specific distance. I sling about 400 arrows a night and will until season starts, thats about 20,000 practice shots before season starts, I think I can determine what is my personal effective shooting range.