What do you shoot for a rifle
and what is your comfort range
you need go to where you saw him and ambush him there(creatures of habit) .. just do way less calling and bonk your horns into the ground once or twice in 1 hour
get a old white blanked or sheet and loosely cover yourself
put some doe in heat on your boots and on some cotton and leave a couple pieces as you walk up to were you saw him on branches along the way
Good luck
David