Firstly thanks for the response niteowl,
I have a small hut here in sa on 270 acres, and my plan is to put a bait (carcass of some kind) out at 80-100metres and sit on my deck at night and pop off some foxes and cats whilst sipping on a scotch. I know there's plenty of feral there as I border a conservation park.
Ive just purchased a .17HMR that I want to set up permanently for night vision and im not after huge distances.,
Excuse the pun but I hope this sheds some light on my situation.
Cheers Darren