I will be upfront and state that I have not spent much time on this forum thread, and know very little about LR handguns. I have a Russo stock on order, and have contacted Jim See for a build, but would like forum members input as well, on caliber choice and components choice for this build. First, alittle background. I am dealing with a cronic shoulder injury, rotator cuff, due to work. Heavy construction worker for 35 years has taken a tole on my body, and don't know how long I will be shooting rifles. Hopefully for a long time. However, I need to look at the option of hunting elk with a handgun, and take the pressure off my shoulder. I would like imput on calilber choice and components with this goal in mind, to take down an elk at 7-800 yards if that is possible with a handgun, and I am able to get good with it. Also, would like feedback on optics. I know this is a tall request, but maybe just tell alittle bit about what you are using for elk at longrange, and include barrel contour, twist, weight of your rig, optics,ect. Thank you in advice for your responses.