My local range isn't all that great so most of my shooting has been with the rifle on bags but i want to change that. When there aren't too many people around the range owner doesn't care how i shoot as long is it's on target. I've recently started hunting hogs and realize that not only am i way out of shape, i can't shoot all that great standing up. How should i change this? Should i start at say 25 yards and work my way out further? Would it be a good idea to practice holding up my rifle at home for extended periods to help with steadiness?