Awesome lookin' buck! Man, you should have been bowhunting over that bait pile the last couple of days!!! Good luck with that long beamed brute!
Long beams and a good solid spread should help his score. However, his tine length isn't exceptional (compare to his 6"-7" ear) so he won't score as high as what he initially looks.
My best guess would be a score in the 150's B&C for this beautiful 4x5.
Best of luck with 'em!