This is an interesting subject which I have debated on other forums and here is my answer. IF a person can make a 1000yd shot with confidence that he will kill the intended target with 1 shot then he should take the shot. Anyone who has doubts about their ability to make the shot should stick to closer shots. I have made many long range kills. I prefer them, for me it is the challenge of shot placement not just in the vitals but in that little light or dark spot just below the ear or behind the shoulder and so on. Having the confidence in your equipment and yourself is paramount to long range shooting and that comes with practice.