Here is why not

1. Wind is blowing 15mph from right to left across your shooting lane. 20yds...no big deal. 60yds...that is a WHOLE 'nother story.
2. Even if your bow shoots "hard and fast", especially if a buck is at attention @ 60yds, you have a good chance on him jumping the string. The more time for arrow flight before contact, the more time the deer has to drop, duck, turn, jump, flinch...you name it, he has more time to do it. No amount of speed will ever overcome a bucks reaction to sounds at long ranges.
3. Judging by your vocabulary, you havn't shot this far at a deer before. Probably a reason for that. You arent going to pick up a new bow and all of a sudden become a tournament level archer. True, with practice you might be there eventually, but 60 yd shots take years to master, and even then people still mess them up!
4. At 60 yds, it is awful hard to see that lil twig that might deflect your arrow into the ground, or worse, into the wrong area of that deer. Only perfectly clear shooting lanes cut it at that yardage.

I havent even gotten started yet, and you have 4 of my (decent) reasons to not shoot out to 60 yds AT PRESENT. Like I said, it is possible, but I will never do it.