It depends which Model BMJ and which SSR BYF or CE . Best way to keep the Na Sayers from saying other wise is Period Photo . But I can`t recall ever seeing one but I will have to look at a Couple Pics I have seen and have a closer look . But I would say it is Possible on all Varients of BMJ`s could have been used . Remember Never Say Never . Example Zeiss Ziesechs was never and Germans would have never used that Scope on a SSR . A year later there`s an Original Photo that Blew that Comment Out of the Water . Best Regards