I know I posted earlier, but practice and confidence outweighs the bullet, (pun).
I can tell you after the months of weekly trips to the local 100 yd range (plus dry fire practice in my basement) and every 2-3 weeks, weekend trips to the 200-500 yd range, I felt confident. I spent more time shooting last summer than I ever have. I did shoot longer than 500 at 12" steel, but I set a limit for myself. I knew I could close distance in the field.
The last stop for me was the weekend before. It was blowing 40-50 mph wind. I was there for final adjustment of the scope, but realized I would not move the scope, and the wind was going to push me right. Cold bore at 200 yds w/ my 280 was 2" right dead zero elevation, consistent with the wind, and second shot, in between wind gusts was dead nuts.
I cased the rifle after these 2 shots and left. With the wind, no need to risk discouraging myself. I "knew" inside 400 I had a dead critter if given the chance. I was willing to go further but range vs. field are quite different. Confidence goes a long way.
Forget all the tips/tricks and go practice. Get confidence and "know" what the longest shot you are willing to take. For a once in a lifetime (well pretty much), put yourself in the best position and take your time.
I want to see this dead goat this fall! Best of luck friend!
Also, if you want some further encouragement or to realize how humbling this hunt is, let me know. We can chat.
I am envious and will hoping for a goat while
I am still young enough to do it !