good evening ,as stated by members ,you do not need to get expierience or do a course ,its you families live stock you are protecting .tell the feo that and that you know all the footpths,roads and access points and also you have defined safe back stops and you intend to shoot from an elevated postion into the ground. a center fire is LESS likely to bounce around unlike the humble .22lr.. an elevated position can be any thing as long as the bullet is heading towards the ground/solid back stop. i am assuming you are 18 years +?