I find it hard to believe that people can't do prone, I assume that as you can't shoot laying down, then you must sleep sitting in a chair?
We have shooters in HFT who walk with two sticks around the course and have to use a wheel chair in normal day to day life, we also have a shooter with one leg who manages to get up and down.
I think its more the case that some people just want to shoot sitting.
Somehow I made TEAM ENGLAND 2012 and 2013
Illiterate writer for AirGunner
The real Kung Foo Panda.