What is his ADG for the last month?
What do you think he will finish at? His frame size
Is he still growing or has he slowed down?
Depending on his ADG and build he may be right on track for the July fair but you probably would need to hold him at some point for the State Fair. Not knowing where you are, how much the summer heat might come into play, if you plan on putting them in a cooler, these conditions can slow them down as well. I think you would have to make a choice, feed him for the early show or hold him for the State Fair, It could be tough to have him at his best for both, it can be done but it is allot of constant monitoring and changing the little things to hit 12:00, twice, 5 weeks apart. Your calf is about where the boy I have been helping, your calf should cruise into the July show no problem.
The kid I have been mentoring this year has a steer sitting right at 1200 pounds he has gained 3.3 pounds in the last 70. His Market Heifer is 957 and gaining 2.7 both animals should be in their respective competitive ranges by his fair, July 1. I figure the steer will be in the high 1300s and weigh in the low 1300s and the heifer will be in the low 1100s, not bad for an April heifer, he would have like to gotten her to 1200, but that will not happen.
Good luck