She's not a shiloh, she's a long coat sable GSD. Most likely a purebred as well. 70 lbs at 10 months isn't out of the ordinary, especially for a female who might not really fill out any more. 100 lb females aren't that rare in our breed anymore.
I've seen a shiloh in person, they have a GSD face, but their ears are smaller and you can clearly see the malamute in them. Shilohs are also generally grey or silver with white. They have bred out the dark brown and blacks out of them. One of my club members has a 10 mo. old female right now out of American Show lines that towers over my boy by a good 2 inches, and he's 2.5 years old. When I saw the shiloh...my boy looked like a puppy next to him. He was at least 180 lbs if not clearly over 200 at 1.5 years old.
She's just a larger shepherd. Probably a mix of a bunch of lines since working lines tend to be smaller and for her to get that size she'd have to get some show lines in there somewhere. But then again genetics are funny and sometimes you just get those outliers.
CD RE TC HIC 7/10