This is copied directly from the rules page, so you are correct on the 10 day allowance for reporting score
10. The entry must be posted within 10 days of taking it OR notification must be made to the team, team captain, participating moderator or admin that an animal is down with description to determine that a participant isn't holding out for a better animal. This is not fair for single tag states nor those that cannot travel and hunt multiple states. The first antlered animal must be counted.
Don