Ultimately, it doesn't matter what anyone else has on their gun, what matters is can you find the size you need for your gun. The supply of these has become very limited for the Magnum calibers.
These guys have them, Numerich is out of stock. You will need a U.S. shipping address or need to get someone like Prophet River to bring it in. You might try pming Chuck, on here, he is a big Model 70 fan, he may know where to get these here in Canada.
https://www.midwestgunworks.com/winc...520Win$2520Mag
Best of luck.