One other thought about recoil, regardless of stock design and proper shooting position, when you get to around 90-100 ft-lbs of recoil at around 25 fps or more, it's going to be jarring. I'm not talking about comped or braked rifles. At this level of recoil, your brain starts to shocked, much like a boxer's during a heavyweight boxing match. Even with lots of practice and proper form with a good stock design, 100 ft lbs of free recoil is not going to be pleasant.