Terry,
Ok, I stand corrected. I had a fellow in Europe ask for a stock for a ZG-47 and said it was a large ring. I told him it had to be a small ring because that how it is listed in Jerry Kuhnhausen's book "The Mauser Bolt Actions". Never heard back from him. I'll correct the entry in my copy of Kuhnhausen's book because a rifle in hand trumps a listing in a book any day. Thanks.