Pytorch's Resnet 50 accuracy

Hey, Pytorch’s (torchvision) Resnet 50 accuracy is declared to be 76.15.
But when I’m using the training script from PyTorch’s repo, which is mentioned in the official torchvision website(
and the Resnet50 from torchvision:
When training it, after one epoch I’m getting an accuracy of 76.6, how can it be? isn’t the models fully trained?