AK Troutbum
WKR
My advise would be don't over think it. Use which ever caliber your most comfortable/accurate with, don't attempt a shot on something that you'll be very unlikely to retrieve or will be ground burger when you do retrieve it, and aim for the vitals. Take your time and wait for the right shot, under the right conditions, and in the right spot. IMO, going home empty handed having never taken a shot is much better than going home empty handed having taken a bad shot. My first 3 goat hunts, 3 years in a row, I never took a shot but I gained a ton of knowledge and I never had any regrets. Good luck, and I hope you have a great hunt.