My 7mag has put elk to the dirt with single shots many times. They couldn't tell the difference and the one I shot this year was at 520 yards but I'm sure a 200 fps gain would have made a big difference lol. The biggest factor to killing an animal is shot placement. Now granted I would not use a 22lr on an elk but for hunting I would not put all my money into getting more velocity. The 7mag will kill anything an stw even though it has a 2 to 300 fps gain.