RE: Was I right or not???
You need to know your 100% kill range. It sounds like you practice to 30 yards. As long as at 30 you have 100% confidence you will hit your mark, then its ok to shoot to 30 yards. You decide this before you go hunting. When hunting you should follow your own self imposed limits. I think you did the right thing! My hunting limit is 30 yards(if its not walking and broadside) I let them go if more.
Good Luck!
PRACTICE....PRACTICE....PRACTICE......SUCCESS!